10/31/2023 0 Comments Download virtual wire library arduinoTry Arduino Academy for FREE!ĭownload and install the Virtual Wire ( VirtualWire.zip) library (we have slightly customized the sketches found at this site, so try ours found below first, they are much more satisfactory).Ĭonnect the smaller transmitter board to one Arduino, using +5v, Gnd, and “ATAD” to Arduino pin 11.Ĭonnect the larger receiver board to the second Arduino, using +5v (VCC), GND, and either of the 2 DATA pins to Arduino pin 11. Alternatively, the Transmitter could be plugged into another computer or a USB charger for power. You will need two Arduino boards, 6 jumpers, and 2 solderless breadboards for this project.Ī 4 AA battery pack or a 9v for the transmitter Arduino will make it wireless, the receiver will be plugged into your computer. Add a 13cm wire to transmitter ANT connection for greater range. There are only 3 wires to connect on each unit, 5v, Gnd, and Data (spelled ATAD on the smaller board, which is the transmitter). This could be useful for weather sensors, security alarms or remote control, etc. Today I took a $3 433 MHz transmitter / receiver pair, and sent a string of characters 20′ from one Arduino to another.
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