First of all thanks a lot for giving me the chance to place some specific questions related to 9X 2.4 GHz RF module.
I am intending to build my own tiny remote control (our 4 little kids are pushing heavily...).
30 years experience in embedded control programming and electronics is given, especially related to ATMEL microcontroller applications - so that's not the issue.
I have ordered via Hongkong one 2.4 GHz TM-002 transmitter module and 1 receiver each with 3, 6 and 8 channels.
Then I checked hundreds of posts in several internet forums collecting a lot of information.
Nevertheless there ae some open remaining questions:
- I have found the following TM-002 connector pinout: 1: PPM, 2: 6V DC, 3: Batt V+, 4: GND, 5: RF out - can anyone confirm this?
- According to TX9 schematics only GND and pin 3 (Batt V+) are connected to power supply. Is pin 2 (6V) providing the voltage from the module's voltage regulator?
- In some applications I've seen the RF module gets supplied with 5 V only. What is right? Does it need 12 V (or 11,1 from 3S LiPo) or is 5 Volt sufficient?
- The bind algorithm to connect transmitter and receiver: is it exclusively implemented in the module or is also the transmitter ATMEGA taking care of binding?
- My idea is instead of a typical RC PPM signal to use the TM-002 module to transmit a binary code pattern every 5 ms similar to a RS232 protocol - has anyone of you experience in trying such thing?
- Accordidng to the information I found on the WEB only the 6 channel receiver is providing a summary signal. Is this right? Or is there also a summary signal available in the 3 and 8 channel receiver? (it does not have to be available on a connector pin - I can take it from the PCB)
- In the WEB I have only found the confirmation that it is possible to bind TM-002 with the 6 channel and 8 channel receiver. Does anybody know whether the small and cheap 3 channel receiver can also be bound?
Unfortunately I haven't got a TX9 so I am unable to take reference measurements.
Thanks a lot for your help!
Johannes