I2C bus over WRL-08945 wireless system

Wireless & IoT
1

Hello, my name is Dave and I’m a Mechanical design engineer.

I have a need for my RC Hobby to have a wireless telemetry system.

I currently have this on board data logging system and LCD display http://www.eagletreesystems.com/MicroPower/micro.htm

the datalogger communicates to the LCD over an I2C bus :frowning:

what I’d like to do is mount the LCD directly on my RC transmitter so I can see in real time what is happening on my model aircraft.

I did purchase the WRL-08945 Wireless transmitter and a matching receiver.

the problem now is that I am a mechanical guy with ZERO programming knowledge, but I would like to get this wireless telemetry working. I feel it can be done, but I am just not sure how to do it. I can build boards/circuits etc. but programing is far outside my ability at the moment.

basically what I need to make is a :“wireless I2C cable…”

I imagine the I2C from the logger needs to be converted into serial then go wireless then be converted back to I2C to drive the LCD.

is this possible to do ?

I appreciate your help oh electronic super gurus. I am very open minded and willing to pay :slight_smile:

best regards,

David

2

I2C isn’t a good choice for wireless because of the high bit rate.

You could do a microprocessor that takes a batch of bytes in some protocol of your scheme, then send that batch as a packet on a wireless medium such as IEEE 802.15.4 (zee XBee products here on SFE).

A pair would do this.

Simpler is to use a UART serial port on each end and that connects directly to the XBee. No programming with these to make a wireless serial port extension. $20/radio.

3

the problem is that the device I want to separate is already I2C :frowning:

I could live with refresh rates up to 1 second per.

I do not know any programing, so I have no idea how to do that.

I would love to buy a set of pre-programmed chips or even dedicated I2C to serial and serial back to I2C chips.

I’m not sure what is already available.