8. Solder 2pcs 15 pin female header to stack the Arduino Nano
9. Stack the Bluetooth module and the Arduino Nano on the correct female headers. Your Amarino Nano board is ready to use. Visit this page for experiments.
If you have come to this page from a search engine, please read this pagefirst, you will eventually come back to this page again. The first page gives you the idea of Amarino Nano 1.0 and its features.
Steps for experiments:
Before you start the experiment, stack the Arduino Nano and Bluetooth modules on the headers of Amarino Nano. This is how you do that:
Then connect it to your computer for programming using the provided USB cable. Please remember that you need to turn off the RED colored 1P-DIP switch while uploading your sketch to your Arduino.
For all the experiments, you have the following things in common:
Step 1:Amarino Toolkit MAIN application:This is the main Amarino application to be installed on your Android phone. There are other applications which work only after installing the main application. If the link does not work, download the application from here.
Step 2: Amarino Library for Arduino: Download it and move it to the Libraries folder. You can check here if the Amarino team has upgraded the library. It’s always good to use the updated version .
If the given link does not work, you can download the library from this link.
After installing the Amarino main application and Amarino library, we move to the following steps:
Step 3: Pair up the Bluetooth adapter module with the Bluetooth of your Android phone. The pairing code is 1234.
After installing the Bluetooth adapter on the Amarino Nano kit, switch on the Bluetooth function of your phone, open the Amarino application and connect each other using the pairing code 1234. You can see the MAC ID of the Bluetooth adapter on the Amarino application interface. On the image shown below, you can see that there are two Bluetooth adapters with two different names and IDs registered on the application. Pressing the “Connect” button connects the application to the chosen adapter. You can connect only one adapter at one time.
Once the adapter is paired up, you don’t need to pair it again.
On the schematic given below you can see how the components are connected to Arduino Nano. Seeing the schematic you can expect the output of your projects.
Download the Arduino source code and upload it to your Arduino Nano. NOTE:You need to switch off the 1P DIP switch while uploading the sketch. After uploading switch it on again.
Set Bluetooth MAC ID. It is different for all Bluetooth modules. My Bluetooth module has MAC ID: 98:D3:31:70:3A:98, so, I used that. You will have a different MAC ID for your Bluetooth module.
Open the application and control your RGB LED. As you move the slider, the color on the RGB LED changes. Remember to switch on the 1P DIP switch, otherwise, it won’t work.
Download the Arduino source code and upload it to your Arduino Nano. NOTE:You need to switch off the 1P DIP switch while uploading the sketch. After uploading switch it on again.
Set Bluetooth MAC ID. It is different for all Bluetooth modules. My Bluetooth module has MAC ID: 98:D3:31:70:3A:98, so, I used that. You will have a different MAC ID for your module.
Open the application and see the sensor data on your phone. You may also control the 5mm LED simultaneously. Remember to switch on the 1P DIP switch, otherwise, it won’t work.
Download the Arduino source code and upload it to your Arduino Nano. NOTE:You need to switch off the 1P DIP switch while uploading the sketch. After uploading switch it on again.
Set Bluetooth MAC ID. It is different for all Bluetooth modules. My Bluetooth module has MAC ID: 98:D3:31:70:3A:98, so, I used that. You will have a different MAC ID for your module.
Open the application and see the sensor data on your phone. You may also control the 5mm LED simultaneously. Remember to switch on the 1P DIP switch, otherwise, it won’t work.
“Cosmarino is a kit for experimenting Android-Arduino communication via Bluetooth.”
Features:
Control RGB LED with Android phone
Display photoresistor sensor data on a graph on Android phone
Transmit LM35DZ temperature sensor data on Android phone
Control 5V relay with Android phone
Control 5V relay and LED with any infrared remote control
This is Cosmarino- A simple DIY kit for facilitating communication between Arduino Nano and Android via Bluetooth communication medium. The kit also has a TSOP4838 infrared sensor which offers you the possibility of controlling the kit with a normal infrared remote control.
The kit has been designed to support particularly Amarino toolkit Android application, but we have tested the kit with many other applications made for Arduino-Android communication via Bluetooth and all have worked properly.
The kit package includes:
Cosmarino kit- Available in fully assembled and DIY versions
Android app controlled: The Cosmarino kit can be controlled with several Android applications made for controlling Arduino or communicating with Arduino via Bluetooth. We have used Amarino toolkit and many other Android applications for testing different features of the kit.
Bluetooth support: The control signals from Android phone are sent to Arduino Nano via Bluetooth. There is a Bluetooth module connected to the circuit board that facilitates communication between Android and Arduino.
TSOP4838 infrared sensor: There is a TSOP4838 infrared sensor on the circuit board which allows you to control Cosmarino with any kind of TV/DVD remote control. However, the kit package includes an Infrared remote control also.
Fully programmable: The kit is fully programmable because it has Arduino Nano.
Experiments:
You can do several experiments with Cosmarino. Some of the interesting experiments have been listed below.
1. RGB LED control: You can control the common cathode RGB LED with your Android smart phone.
Video on Youtube(control with remote control)- This video shows you how you can control relay with Smart phone app and remote control at the same time.
3. LDR/photoresistor sensor data- Cosmarino can transmit LDR sensor data to your phone. You can receive LDR sensor data and control the 5mm LED at the same time.
This feature is available with Amarino toolkit application only.
5. LM35 temperature sensor data- The kit transmits LM35 temperature sensor data to your phone. You can receive the sensor data and control the 5mm LED at the same time.
This feature is available with Amarino toolkit application only.
The assembly process of the Cosmarino kit is very straight forward. You just need to follow the silkscreen labels to get the idea of assembly. A basic knowledge in soldering is enough for assembling the kit.
Amarino lamp is fully programmable. The kit package consists of FTDI basic breakout board, you can use it to program the lamp. The lamp is based on Arduino.
Connect the FTDI basic breakout board to the lamp, open the Arduino programming interface and upload your sketch.
REMEMBER: Turn off the red colored 1P DIP switch while uploading sketch(if the Bluetooth module has been stacked over the 4 pin female header)
Before you start the experiments, please know how the components are connected to the Arduino Nano.
1. OUTPUT- RGB LED: R= D3, Blue= D5 and Green= D6. All these digital pins have Pulse Width Modulation fuctionality.
2. OUTPUT- 5mm LED: Digital pin D11
3. OUTPUT- 5V relay= Digital pin D2
4. INPUT- LDR/Photoresistor= Analog pin A1
5. INPUT- LM35 temperature sensor: Analog pin A0
6. INPUT- TSOP4838 infrared sensor= Digital pin D7
Steps for Amarino experiments:
For all the experiments, you have the following things in common:
Step 1:Amarino Toolkit MAIN application:This is the main Amarino toolkit application to be installed on your Android phone. There are other applications which work only after installing the main application. If the link does not work, download the application from here.
Step 2: Amarino Library for Arduino: Download it and move it to the Libraries folder. You can check here if the Amarino team has upgraded the library. It’s always good to use the updated version .
If the given link does not work, you can download the library from this link.
Step 3: Connect the Bluetooth module to the circuit board. Please note how the Bluetooth module has been stacked over the 4 pin female header. After you stack it on the circuit board, you will see a red LED blinks on the Bluetooth module.
On the Amarino main application interface, touch Add BT Device. That will display the Bluetooth module close to your Android phone.
Select the linvorBluetooth module. Remember to note down the MAC ID also. In this example, the MAC ID is 20:13:05:09:15:39. It is unique for all the modules. You will need this MAC ID in the next step. Note that the MAC ID is unique for all modules. It is never same for any two Bluetooth modules.
Pressing the “Connect” button display a text box(for the first time), where you need to enter the pairing code, which is 1234. This connects the application to the chosen adapter. You can connect only one adapter at one time.
Pairing code: 1234
Once the adapter is paired up, you don’t need to pair it again.
Now we can move to the experiments below:
Experiment 1- RGB LED Control:
RGB LED is connected to digital pins 3(RED), 5(GREEN) and 6(BLUE).
Download the Arduino source code and upload it to your Arduino Nano. NOTE:You need to switch off the 1P DIP switch while uploading the sketch. After uploading switch it on again.
Set Bluetooth MAC ID. It is different for all Bluetooth modules. For example, my Bluetooth module has MAC ID: 98:D3:31:70:3A:98, so, I used that. No two Bluetooth modules can have the same MAC ID. You will have a different MAC ID for your module. Enter the MAC ID that you had noted down in the previous step.
As soon as you open the application, the app will connect to the Bluetooth module and you can simply control your RGB LED. As you move the slider, the color on the RGB LED changes. Remember to switch on the 1P DIP switch, otherwise, it won’t work.
Download the Arduino source code and upload it to your Arduino Nano. NOTE:You need to switch off the 1P DIP switch while uploading the sketch. After uploading switch it on again.
Set Bluetooth MAC ID. It is different for all Bluetooth modules. For example, my Bluetooth module has MAC ID: 98:D3:31:70:3A:98, so, I used that. You will have a different MAC ID for your module.
Open the application and see the sensor data on your phone. You may also control the 5mm LED simultaneously. Remember to switch on the 1P DIP switch, otherwise, it won’t work.
Download the Arduino source code and upload it to your Arduino Nano. NOTE:You need to switch off the 1P DIP switch while uploading the sketch. After uploading switch it on again.
Set Bluetooth MAC ID. It is different for all Bluetooth modules. For example, my Bluetooth module has MAC ID: 98:D3:31:70:3A:98, so, I used that. You will have a different MAC ID for your module.
Open the application and see the sensor data on your phone. You may also control the 5mm LED simultaneously. Remember to switch on the 1P DIP switch, otherwise, it won’t work.
There is a 5V relay on the Cosmarino kit. You can control the relay using your phone application or a normal infrared remote control.
Control the relay using general Android application and Infrared remote control
There are hundreds of applications on Google Play that have been made for Arduino and Android application. You can pick up any of those apps and control the kit.
In this example, we have picked up this application which transmits text ‘h’ every time the green button is pressed. We have programmed it in such a way that the relay is switched on if the Arduino gets an ‘h’.
TIP: If you want to know what text a random Android app sends to Arduino, you can check out this tutorial. The tutorial shows you what Arduino receives from the phone and what Arduino sends to the phone. See this video also.
The kit is fully programmable. Please remember to switch off the red DIP Bluetooth switch while programming, otherwise, the Arduino Nano cannot be programmed. You should switch it back again after the kit has been programmed.
If you intend to control the relay with infrared remote control, then, you need to download the library and copy it to the libraries folder of Arduino.
Step 3: Open the Android application and search for the Bluetooth module stacked on the circuit board. Pair up the module with your Android application(to be done only once). Pairing code= 1234. You need to pair up with the module only once.
Step 4: Switch on/off the relay with the application. You can simultaneously control the lamp with your infrared remote control also if you have uploaded this sketch.
Amarino Lamp is a versatile programmable LED lamp based on Arduino. The lamp has an inbuilt Arduino as its controller. PWM signals from Arduino are fed into UNL2003A and this chip controls the LED lamp. You can also simultaneously control the lamp with an infrared remote control. It has the following features:
Android app controlled: The LED lamp can be controlled with several Android applications made for controlling Arduino or communicating with Arduino via Bluetooth. We have tested the kit with Amarino toolkit and many other Android applications.
Bluetooth support: The control signals from Android phone are sent to the lamp via Bluetooth. There is a Bluetooth module connected to the circuit board that facilitates communication between Android and Arduino.
TSOP4838 infrared sensor: There is a TSOP4838 infrared sensor on the circuit board which allows you to control the lamp with any kind of TV/DVD remote control.
Fully programmable: The lamp is fully programmable because it has an inbuilt Arduino. You will need an FTDI breakout board to program the chip on the board. The kit package includes the FTDI basic breakout board.
Resettable PTC fuse: The lamp has a resettable PTC fuse which protects the circuit board from over current flow. In this kit, if the circuit tries to draw more than 500mA of current (if you have a bad short for instance) the PTC would ‘trip’ (by heating up). The increased resistance (trip state) would break the circuit and allow only a small leakage current.
Specification of lamp(according to the manufacturer): This is not the specification of whole circuit.
MR16 4W LED Lamp
Lamp base
MR16
Power
4W
Voltage
12V AC/DC
Lumens
400-500LM
Beam angle
45°
Dimension
diameter 48mm x 61mm high
Weight
37g
Life time
more than 50000 hours
Color temperature
Cool white:5700-6300K
The kit package includes:
The kit package includes everything that you need to build the LED lamp. On the assembly tutorial page you will get the list of components.
“The kit package does not include 12V/500mA power supply. You need to buy it separately”.
A 12V power supply with 500mA or 1A output is enough for this lamp.
The ULN2003A is a high-voltage high-current darlington transistor array. The chip consists of seven npn darlington pairs that feature high-voltage outputs with common cathode clamp diodes for switching inductive loads. The collector-current rating of a single darlington pair is 500mA.
Because ULN2003 can drive 500mA, we chose MR16 4W LED lamp that can be driven easily by ULN2003A.
Schematic:
How does it work ?
“You can simultaneously use Android phone application and IR remote control to operate the LED lamp.”
Bluetooth mode:
The Bluetooth module on the kit is paired up with the Bluetooth of phone and control commands are sent from the phone application. The commands are interpreted by the Arduino UNO microcontroller and ULN2003 is driven to operate the LED lamp.
Infrared mode:
Infrared signals are sent from the infrared remote control and those signals are interpreted by Arduino UNO chip and control commands are sent to the ULN2003 to drive the LED lamp.
Using Amarino toolkit application
You can try several Amarino related experiments with this lamp.
Step 3: Upload this sketch to the Atmega328P-PU Arduino UNO chip that’s on the circuit board. You will also need a library for remote control function, download the library and copy it to the libraries folder of Arduino.
Step 4: Connect the Bluetooth module to the circuit board. Please note how the Bluetooth module has been stacked over the 4 pin female header. And remember to SWITCH ON the circuit board. After you switch on the circuit board, you will see a red LED blinks on the Bluetooth module. Use a 12V (500mA/1A) power supply to power up the lamp.
REMEMBER: Switch ON the 1P DIP RED color switch also. This switch:. Turning it on makes connection between the Bluetooth module and the microcontroller. But, this switch should be turned off while uploading a sketch.
On the Amarino main application interface, press Add BT Device. That will display the Bluetooth module close to your Android phone.
Select the HC-06 Bluetooth module. Remember to note down the MAC ID. In this example, the MAC ID is 98:D3:31:70:35:94. You will need this MAC ID in the next step. Note that the MAC ID is unique for all modules. It is never same for any two Bluetooth modules.
Now, you need to pair up your phone with the Bluetooth module. So, your phone will prompt a box for entering the pairing code. Pairing up with the Bluetooth module is a one time task.
Enter the pairing code: 1234
After entering the pairing code, you will see the Bluetooth module listed on the Amarino application.
Press Connect button to make Bluetooth connection between your phone and the Bluetooth module. As soon as the phone and module are connected, the red LED on the module stops blinking.
Step 7: Enter the MAC ID of the Bluetooth module that you noted down in the previous step. In this example, it is 98:D3:31:70:35:94. Then, press Set Device ID.
Step 8: After you enter the MAC ID of the Bluetooth module, you will reach to this interface. Bluetooth module will be connected automatically to the Bluetooth of your phone.
Step 9: Control the LED lamp with the slider and simultaneously control it with ANY remote control.
Watch the video below:
Where can you buy ?
Control the lamp using general Android application
There are hundreds of applications on Google Play that have been made for Arduino and Android application. You can pick up any of those apps and control the LED lamp.
In this example, we have picked up this application which transmits text ‘h’ every time the green button is pressed. We have programmed it in such a way that the LED lamp is switched on if the Arduino gets an ‘h’.
TIP: If you want to know what text a random Android app sends to Arduino, you can check out this tutorial. The tutorial shows you what Arduino receives from the phone and what Arduino sends to the phone. See this video also.
The lamp is fully programmable. So, you can use your regular Arduino programming interface to program the lamp in anyway you want. Please remember to switch off the red DIP Bluetooth switch while programming, otherwise, the chip cannot be programmed. You should switch it back again after the chip has been programmed.
Step 2: Upload this sketch to your Arduino. This sketch is for controlling the lamp with Android app and infrared remote control at the same time. If you want to exclude the infrared sensor, you can upload this sketch. You can use an FTDI basic breakout board to program the kit. The breakout board is included in the kit package.
If you intend to control the lamp with infrared remote control, then, you need to download the library and copy it to the libraries folder of Arduino.
Step 3: Open the Android application and search for the Bluetooth module stacked on the circuit board. Pair up the module with your Android application. Pairing code= 1234. You need to pair up with the module only once.
Step 4: Switch on/off the lamp with the application. You can simultaneously control the lamp with your infrared remote control also.
This post shows you how to assemble the Amarino lamp. The kit package includes the following components. Click on the links of the components the components below to see how the components have been assembled on the circuit board.
You will need basic soldering knowledge to assemble the kit. The assembly process is very straight forward, you can easily guess which components to solder where on the PCB. The silkscreen labels are very clear and directs you to assemble the board properly.
Amarino toolkit is a versatile Android application for experimenting Android-Arduino communication via Bluetooth. You can test some of the features of the Amarino toolkit application with Amarino lamp also. For example, you can make the light turn on/off/dim based on the light sensor, orientation sensor, compass, battery level data of your phone.
You can also make the lamp respond to your phone calls and SMS.
There is a list of events on Amarino application that you can test with the lamp.
Step 1: Upload this sketch to your Amarino Lamp. Remember to turn off the Bluetooth switch(the red color 1P DIP switch)
Step 2: Stack the Bluetooth module over the 4 pin female header on the Amarino lamp circuit board. Turn on the Bluetooth switch. You will see a red LED blinking on the Bluetooth module.
Step 5: Select Add BT Device. It will display the Bluetooth module you have stacked over the Amarino Lamp.
Step 6: Select the MAC ID of the Bluetooth module. It will prompt a box for entering the pairing code. Enter 1234 for the pairing code. This code has to be entered only once.
Step 7: You will then see the Bluetooth module listed on the Amarino application interface.
Step 8: Press one the list for about 2-4 seconds, it will display “Show Events”. Press Show Events.
Step 9: Then, you reach this interface. Press Add Event, you will see a list of events available with the Amarino application.
Step 10: Select any Event you like. For example, I select Light Sensor. When you press save, you will reach an interface that displays the light sensor sensed by the Amarino application.
You can see that the Light sensor data is shown under ID: ‘A’. So, you Android sketch should also have code that responds to ID: A. You can check the Arduino sketch, you will see a line:
meetAndroid.registerFunction(valuesensor, ‘A‘);
So, you cannot add another event unless you edit the Arduino sketch.
Step 11: If the light sensor data is not displayed, press the display for about 2-4 seconds, you will get message box, where you have to select, Force Enable.
After you press Force Enable, you will see something like this:
Step 12: Go back to the Amarino interface where you see the list of Bluetooth module and press Connect. As soon as the application connects with the Bluetooth module, the red LED on the Bluetooth module stops blinking.
Step 13: When you block the light falling on the phone, the LED lamp dims the light intensity. The lamp responds to the light falling on your Smart phone.
Step 14: Again press on the light sensor data and press Remove and again add another event, for example, orientation sensor or Phone State or Compass Sensor. You will notice that the lamp responds to all the events on the Amarino application.
REMEMBER: If you are using ID: A on the Amarino app, the Arduino sketch should also have ID: A on this line:
meetAndroid.registerFunction(valuesensor, ‘A‘);
If you are using ID: B, then the Arduino sketch should also have value ‘B’
Watch the video below: The following videos show the complete process on how to make the lamp respond to light sensor and orientation sensor of the phone.
You can use Amarino toolkit application to make a simple dark/light sensor and make the lamp respond to the light present in your room.
For this experiment, we are not describing all the steps because we have described everything on this post. We strongly recommend you to see the main article to know how to use the Amarino application.
We are now selling CD4026 and CD4029 up and down counter modules.
This page shows you how to assemble three digit digital object counter. If you are looking for 2 digit digital object counter please see this page.
If you are interested in knowing about this 3 digit counter, please check this page.
The counter module kit package comes with all the components required to build your kit. Before you proceed, please check if you have all the required components:
3 x common cathode seven segment display-(Can be in red, yellow and blue colors)
1 x TSOP4838 Infrared sensor
1 x 100uF Capacitor- (Voltage rating can be between 16V to 50V- causes no problem in operation)
2 x 0.1uF 50V ceramic Capacitor
2 x 3mm LED- (can be any color)
1 x BC547
1 x BC557
1 x SPDT Slide Switch
1 x Tactile reset switch
1 x Screw terminal- (can be in blue/green colors)
4 x 1K Ohm Resistor 1/4W
1 x 330R Resistor 1/4W
1 x 10K Ohm Resistor 1/4W
1 x Bare PCB with Silkscreen Indicators
1 x 9V battery connector
Please follow the following steps:
Step 1: Solder 1K Ohm resistors. The color code of 1K ohm resistor is Brown-Black-Red
Click on the image to see the color code more clearly.
Step 2: Solder 10K Ohm resistor and 330 Ohm resistors. The color code for 10K Ohm resistor is Brown- Black- Orange and color code of 330 Ohm resistor is Orange-Orange-Brown.
Step 3: Solder 2pcs 0.1uF (code- 104) capacitors.
Step 4: Solder 2pcs 3mm LED. If you do not know which pin is Anode and which is cathode, please see this. The longer pin is Anode and the shorter pin is Cathode.
Step 5: Solder tactile switch. The switch is for resetting the counter. You can see how it work on the video below.
Step 6: Solder BC557 PNP transistor.
Step 7: Solder BC547 NPN transistor
Step 8: Solder 5V voltage regulator. The 5V regulator chip is marked as 78L05. It is in TO-92 package.
Step 9: Solder TSOP4838 infrared sensor.
Step 10: Solder SPDT switch. It is used for switching ON/OFF the counter module.
Step 11: Solder 2 pin screw terminal. It is used for connecting a 9V battery to the counter module.
Step 12: Solder 3pcs of 16 pin DIL sockets. These are used for stacking CD4026 chips.
Step 13: Solder three seven segment displays and 100uF Capacitor. Please notice the + and – terminal of the capacitor. Solder it correctly.
You can build simple LED chaser circuits using CD4017 and NE555 timer. There are hundreds of projects in the internet for making such simple LED chaser circuits.
If you’ve ever struggled to use a solderless breadboard with an Arduino, you understand how frustrating it can be!
This DC boarduino clone acts just like an Arduino, and works with the latest Arduino software. For many projects it can even be preferable! The kit includes all parts necessary, the assembly is straightforward and well documented.
Since this design doesn’t include a USB chip, you’ll want an FTDI USB 232-TTL cable or FTDI friend. Since the cable plugs right into the Boarduino, you can use one cable for multiple Boarduinos.
Specifications:
Designed to plug into a breadboard for easy prototyping
All ‘standard’ pins are brought out – Digital 0 thru 13, Analog 0 thru 5, ARef, 5V, Ground, Vin and Reset
Chip comes preprogrammed with my “no-wait” Arduino bootloader (Read more here).
2 LEDs, green power and red “pin 13” just like the Arduino!
Available as a low cost kit with standard parts, so its never out of stock
All through-hole parts are easy to solder
Reset button
Atmega328 chip has twice as much storage, runs at 16.00 MHz, just like the latest Arduino. Upload baud rate is 57600, use Arduino IDE v13+ (note that the product photo above hasn’t been updated)
6-pin standard ICSP header
Standard 2.1mm DC jack (just like the original) with 5V regulator to run on 7V-17V power
1N4001 diode protects against using incorrect wall adapter
6-pin header at the end for a USB-TTL cable
Auto-reset capability when used with a USB-TTL cable
Does not include breadboard, pick up one of those in our shop!
Disclaimer: This is DC boarduino designed by Adafruit. We have made this utilizing the open source hardware policy. The design files are available on this page.
Description: This is a dependent DIY kit module that has to be used with a clap_switch available at buildcircuit.net. This kit DOES NOT work independently as a clap switch. It is useless without this_clap_switch_kit. So, you need to order that kit also.
The relay module comes as a pack of parts kit and is easily assembled if you can follow the silkscreen indicators (labels) and have beginning experience with a soldering iron. You will need to read the resistor bands or use a multimeter to determine the resistor sizes. Both the kits operate with 9V batteries.
Features:
A DIY kit module that works with this_clap_switch_kit. It is useless without the clap switch.
>Operates a 100-240V lamp with clap/loud sound.
Supply voltage: 6V-9V. The same power supply can be used for this_clap_switch_kit.
There are two supply input points: a DC barrel and a screw terminal. You can use one of the points to power up the kit.
Dimension: 48.26mm x 49.53mm.
Relay specification: Activation voltage: 5V DC. Controls appliances operating at 10A 250VAC, 10A 125VAC, 10A 30VDC, 10A 28VDC. Suitable for Europe, North America, Australia and New Zealand.
Schematic of relay module:
Click on the image to enlarge it.
The kit package contains the following components:
This article strictly focuses on how to connect the relay-module to the popular clap-switch. If you have come to this page from a search engine, we recommend you to visit the following pages:
In this article, we have described how you can assemble your relay module for the popular clap-switch. If you have come to this page from a search engine, we recommend you to visit the following pages:
You can see the following steps to make your relay module for the popular clap-switch.
Step 1: Solder 2pcs of 1K resistor and 4.7K resistor
Step 2: Solder 1N4001 diode
Step 3: Solder LM7805 voltage regulator and BD139 transistor
Step 4: Solder 0.1uF capacitor
Step 5: Solder PC817 optocoupler
Step 6: Solder SPDT switch and 2 pin screw terminal
Step 7: Solder 5mm LED. This works as power indicator
Step 8: Solder DC barrel for connecting power supply.
Step 9: Solder 3 pin screw terminal
Step 10: Solder 5V relay
Step 11: Connect the cathode point of clap switch module to the cathode point of relay module
Step 12: Connect anode point of clap switch module to the anode point of relay module
Step 13: Connect the JST connector of relay module to the + and – point on the clap switch module. The clap switch module gets power from the relay module.
Step 14: Connect a 6-9V battery to the kit and connect electrical lamp.
NOTE: We are selling a slightly different PCB, this will make your job easier. This is better than the previous one. Available in BLUE color. See the image below to know how you can connect the relay module to the clap switch
CLICK HERE to see all the steps- How to connect a lamp to the relay module
Step 15: The following image shows how you can connect a lamp to the relay module
In this article, we are going to describe how you can use the “clap_switch module+relay_module” to light up 100-240V appliances. When we say 100-240V appliance used with a clap switch, it is usually a bulb/lamp/CFL(Compact Fluorescent Lamp) tube. This article is for absolute beginners, so, we will try to explain all the small details. (more…)
In this article, we are going to describe how you can use the “fully assembled clap_switch” to light up 100-240V appliances. When we say 100-240V appliance used with a clap switch, it is usually a bulb/lamp/CFL(Compact Fluorescent Lamp) tube. This article is for absolute beginners, so, we will try to explain all the small details. (more…)
This is yet another MicroSD card breakout board for Arduino. Previously, we had released a similar MicroSD breakout board on our website. This module is bit cheaper than the previous one, that’s the only difference.
As we all know most of the microcontrollers have limited built-in storage. For example, Arduino UNO (Atmega328) has 1Kbytes of EEPROM storage and it might not be enough for all projects. If your project has any graphics, video, audio and data logging feature, you need a removal storage in it.
If you are working with some sort of data logging, graphics or audio, you will need at least a Megabyte of storage. In order to get that kind of storage, you need flash cards, or SD or microSD cards. These days, most of the micrSD cards come with minimum 2 gigabytes space in it. You can store data logging files on to your SD card and access the files using inbuilt SD card reader on your computer or using an external reader.
Here is a simple and a low cost Lithium Battery charging breakout board. This article is about the charger breakout board based on TP4056.
It uses a Micro USB for connecting the breakout board to any computer or ‘USB wall adapter’. It works with linear charging method. It offers 1000mA charge current by default but it is adjustable from 50mA to 1000mA by soldering a resistor. The default resistor soldered in on the board is 1.2K Ohm. A resistance and current table has been shown below on this page. (more…)
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