Orange RX satellite receiver and Lemon-RX UART-enabled receiver serial data feed

GPS · Jan 7, 2014

While working on my new autopilot control board (for quads) I realized that using 6 (or more!) MCU pins just to read data from the RC receiver is too taxing for the MCU as well as for the “real estate” on my board – there should be a better way to communicate with the receiver! A quick search on the Internet brought me to the Lemon-RX UART-enabled receiver (http://www.lemon-rx.com/shop/index.php?route=product/product&pr...). That same Internet search brought me to Jordi’s post (http://diydrones.ning.com/profiles/blog/show?id=705844:BlogPost:64228) – apparently Spectrum satellite receivers talking serial protocol back to main receiver. Another post (http://www.rcgroups.com/forums/showthread.php?t=922566) confirmed it.

I have a few Orange RX satellite receivers as well as Lemon-RX UART-enabled receiver, so I decided to check them for details of the serial communication.

For tests I use Orange RX 6-channel DSM2 radio with the end points on each channel configured for linear curve with the +/- 100% end points. I connected receivers to my computer using FTDI 3.3 serial cable.
Click to expand...

Read more and see photos via the source link.

Source:
http://diydrones.com/profiles/blogs/orange-rx-satellite-receiver-and-lemon-rx-uart-enabled-receiver

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Orange RX satellite receiver and Lemon-RX UART-enabled receiver serial data feed

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Orange RX satellite receiver and Lemon-RX UART-enabled receiver serial data feed

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