433Mhz/315MHz transmitter test with the PlatformIO and Arduino framework
Boards:
- Arduino UNO
- Digispark ATTiny85 USB clone (LED on PB1)
- Wemos D1 Mini (ESP8266)
Radio hardware:
- Preferred: WL101-341 433MHz superheterodyne receiver and WL102-341 transmitter.
- Cheapest: MX-RM-5V 433MHz ASK OOK super regenerative receiver and FS1000A transmitter
- RFM83C superheterodyne receiver
Tips to improve transmit/receive distance:
- Consider coil loaded antenna solution
- FS1000A transmitter can use anything from 3.3V to 12V. Increasing voltage will increase transmit distance. If you are using voltage regulator, attach transmitter directly to the battery. Receivers needs 5V, it doesn't work on 3.3V unless otherwise is mentioned in specs
- For WL101-341 and WL102-341 use bundled antennas (short for TX, long for RX).
Digistump dtiny core TinyDebugSerial
overrides Serial
and uses:
PB3
as TX for CPU frequencies <= 8MHzPB2
as TX for other frequencies
See TinyDebugSerial.h for the details
SpenceKonde tiny core TinySoftwareSerial
overrides Serial
and uses:
AIN0
(PB0
) as TXAIN1
(PB1
) as RX