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Two operating rotors

A project log for EVPR: Electric Variable Pitch Rotor

An electrically actuated variable pitch rotor with a wireless interface

Peter McCloudPeter McCloud 01/18/2018 at 06:002 Comments

There are now two operating EVPR prototypes. This week I finished assembling the parts for the second rotor. Both are using the new Adafruit Huzzah32 boards. 

While both rotors respond to the controller inputs, there is an unacceptable delay in the responses and a jerkiness to the servo movements. The firmware uses TCP to send the servo positions from the master to the slave. I had chosen this method so that the connection status could be monitored. However, using TCP appears to be having side effects that I don't understand. More work is needed on the firmware.

Discussions

Jarrett wrote 01/18/2018 at 06:13 point

ESP-Now is a point-point protocol that Espressif has developed. It might be lower overhead and therefore lower latency. Worth checking out, anyway.

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Peter McCloud wrote 01/18/2018 at 15:40 point

I had been wondering if ESP-Now was worth trying out. I'll give it a shot. Thanks!

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