jeff77789 wrote:does anybody have any experience with what type of signal it actually sends/receives?
jeff77789 wrote:I sent a pwm type output through this and it looks like it kind of successfully transfers but the signal is very noisy, disrupting the pwm signal. i dont think an analog voltage signal would transfer
jremington wrote:That transmitter/receiver pair won't work with the ultrasonic sensor, for reasons described in the link posted by Mee_n_Mac. However, they are a great, very cheap solution for short range transmission of digital data using microprocessors (up to about 300 m in the open). If you use Arduino, or other AVR-type C programmable micro, take a look at the VirtualWire library http://www.airspayce.com/mikem/arduino/VirtualWire/
jeff77789 wrote:are you saying that i need 1 microprocessor for the sensor and the Tx and 1 microprocessor on the other end of the wireless signal where the Rx is to interpret the signal?
I only have one arduino at the moment (arduino nano) and to save cost is it possible to use the 8-pin AVR ATtiny85?
I have no experience with this since it is just the microprocessor unit and it doesn't even have an arduino bootloader. how would i go about programming this?
waltr wrote:9600 is too fast for the TX/RX and is likely to result in garbage at the RX end. Change the Baud rate to the TX to 4800 or less.
Are you sending 'sync' bytes before your data?
Are you Manchester encoding your data?
Both greatly improve the reliability of the data.
Did you study the VirtualWire code?
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