Change The BT module audio gains All of our Bluetooth audio amplifier boards and Bluetooth audio receiver boards use AudioB plus module as the core bluetooth receiver module. If you have to use a mismatch speakers or power supply in your system(size limit or other reasons). You may want limit the maximum output audio gains…
Enable/Change The BT Pair number All of our Bluetooth audio amplifier boards and Bluetooth audio receiver boards use AudioB plus module as the core bluetooth receiver module. The default bluetooth name is “BT SPEAKER”. Maybe you want change it to a special name or add a password to this module. We just updated the AudioB plus design…
The 4 channel RF receiver and transmitter can be used with or without an Arduino. You can connect relays to the receiver outputs to control it wirelessly.
USB Boarduino is very much similar to DC boarduino. A USB boarduino board has a USB socket in place of DC barrel, that’s all. This product is no longer sold by Adafruit, so, we cannot get the description. However, if you want to order or redesign it, here are the files: Original product link Assembly…
This is one of the simplest ESP8266 test board for beginners. We have sold several copies of this board on Ebay and on our website. This tutorial should help you assemble your ESP8266 test board. Basic soldering skill is enough to assemble this board. You will receive these components:
Click here to go to assembly page of infrared receiver. You will get these components with infrared transmitter kit: 1 x PCB 1 x Earphone Jack female 1 x Infrared LED 1 x 100uF electrolytic capacitor 1 x 4.7uF electrolytic capacitor 1 x S8050 transistor 1 x 5mm LED 1 x 0.01uF ceramic capacitor- Code:…
This is a MAX7456 OSD ( On Screen Display) shield for Arduino. The user can easily interrupt and overlay text and/or graphics onto a video signal (PAL or NTSC). It’s just about “plug-and-play” with an Arduino board. Plug this shield over Arduino main board and upload the given test sketch. Plug in your video signal to…
See page 1 Remaining part of assembly of line following robot… Fix the nut bolt set on the PCB Solder the photo resistor/LDR as shown on the image.Make sure that the LDR is at least 5mm above the ground or spot where you are placing the robot. Solder the transparent 5mm LEDs. The LEDs should…
The assembly of a line following robot is pretty straight forward. If you follow the silkscreen labels, you will be able to assemble it easily. The line following robot comes with the components as shown on the image. Start with resistors Solder all the resistors that comes with the package. Solder the transistors S8550 Solder…
Delivery to USA, Canada, UK and Germany: 7-10 days Read about shipping and delivery
You can call this as an upgrade to LM386 based audio amplifier. We are also selling speakers for this module. This is a small but very powerful audio amplifier which is able to deliver 2.5 Watts into 4-8 ohm impedance speakers. It is based on Class D controller circuit that can be operated with 2.0V-5.5V DC….
This is a very interesting project for beginners. We had made similar project several years ago and published on BuildCircuit.COM. Check out this page. In this project, music from an audio source can be transmitted wirelessly via infrared medium. There are two kits included in this package. One is transmitter and the other is a receiver….
A 3 pin NTC thermistor and LM393 comparator based module can be used to sense temperature or heat. It can be used both with and without Arduino. First, let’s see how you can use it with Arduino. Experiment: In this experiment, we simply increase the ambient heat around the thermistor and we’ll see how the…
We have been using different online Gerber viewers for checking our Gerber files before sending the PCB designs for manufacturing. We have now started using EasyEDA’s Gerber viewer because it helps us to visualize the PCB that would appear after it is manufactured. The application is pretty straightforward and we can check different files to see the changes on…
Few months ago, we had published an article about EasyEDA and described about its features. We see EasyEDA as one stop solution for all the PCB design and manufacturing processes. Check out the previous article about EasyEDA. EasyEDA has been providing most of the services related to PCB/circuit design and manufacturing to its customers. The only thing…
This is a 2x8W audio amplifier board integrated with Bluetooth 4.0. It has a perfect class-D architecture (based on TPA3110D2) and every channel has 8W power output. This board can be powered by any DC 8V-16V power supply. It can be used to drive any 4Ω or 8Ω passive speakers.
This is a 2x8W audio amplifier that has integrated Bluetooth 4.0. It has perfect class-D architecture and each channel has 8W power output. This board can be powered by any DC 9V-14V power supply. It can be used to drive any 4Ω or 8Ω passive speakers.
This is a 2x8W audio amplifier board integrated with Bluetooth 4.2 . It has perfect class-D architecture (based on TPA3110D2) and every channel has 8W power output. This board can be powered by any DC 8V-16V power supply. It can be used to drive any 4Ω or 8Ω passive speakers. The highlight point is Apt-X and TWS supported. Therefore,…
