TSA7010 – Digital Bluetooth Audio Receiver Board (I2S+DAC)

This digital Bluetooth music receiver connects to the Line-In or Aux input on your home audio system. You can stream audio from your Bluetooth enabled cell phone or mp3 player to your home audio system. It comes with an I2S output digital AudioB plus Bluetooth module. I2S digital output and music resampling frequency is 48KHz. Apt-X supported….

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Viewing BuildCircuit’s Gerber Files on EasyEDA Gerber Viewer

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…

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+/- 1.7G DUAL-AXIS IMEMS ACCELEROMETER USING ADXL203

The ADXL203 Module  is high precision, low power, complete dual-axis accelerometers with signal conditioned voltage outputs, all on a single, monolithic IC. The ADXL203 measure acceleration with a full-scale range of ±1.7 g, ±5 g, or ±18 g. The ADXL203 can measure both dynamic acceleration (for example, vibration) and static acceleration (for example, gravity).The typical…

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Water Level Indicator

We can use the logic of making an automatic light detector to make a simple water level indicator.We just need to remove LDR from the circuit and put the wires into water, then it simply works as water level indicator. There is a specific resistance between the wires that are dipped into water and conduction of electricity through water gives biasing voltage to base of transistor.

The sensitivity can be adjusted using VR1. Put 470K variable resistance in VR1.

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Amarino Evaluation Shield

After the success of BuildCircuit’s first Amarino Shield for Android-Arduino experiments, we are here with Amarino Evaluation Shield. I am grateful to all the customers and readers who purchased our first kit and gave us their wonderful comments. About Amarino Evaluation Shield: Amarino Evaluation Shield is for Amarino toolkit and most of the available Android…

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