Description: The PPM encoder v2.0 board, has an improved and smaller Paparazzi based design. The board plugs into the servo output ports on an R/C receiver and encodes them into a PPM pulse suitable for the Paparazzi autopilot and other projects. This allows you to use any R/C equipment with the Paparazzi autopilot or read up to 8 servos with a single I/O pin of your uController. Modifications to the R/C receiver are not necessary. Connect the wires from your receivers channels to the PPM and one wire to the PPM "in" of your system. If you decide to use this board to power the receiver, make sure you put-in a jumper and plug something between the 8th channel and the receiver.
The whole project is based around the ATMEL ATMEGA168/328 AVR processor and all timing is done within interrupts so accuracy and stability is optimized. It is also possible to select the PPM waveform shift, negative or positive.
Note: The firmware comes pre-configured to read 8 Channels. In case you would like to change the settings of the PPM encoder to invert the PPM signal and change the fail safe pre-defined values you will need an AVR ISP programmer in order to reprogram it.
- 8Ch inputs
- PPM output (Negative or Positive selectable)
- Power Supply selector (Solder jumper at bottom)
- Open Source Firmware
- Fully customizable
- Improved PCB layout
- Weight: 0.1 oz; 3 g
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