It is a useful device based on Attiny10, which can be used for testing servomechanisms.
Program consists of three sests which can be changed by S1:
- position of servomechanisms adjustable using P1 (pulses from 0,9ms to 2,1ms)
- position of servomechanisms changed automatically (pulses from 0,9ms to 2,1ms)
- setting the servomechanisms in the middle position (pulses 1,5ms)
Frequency of pulses: 50Hz.
SERWO2 is set in opposite position than SERWO1.
Timer0 (Mode 14, Fast PWM) produces the signal.
Program was written in Assembler.
„Configuration Byte 0” = 0xFE
Schematic:
PCB:
View from the side of SMD components (600DPI):
Contacts and button should be mounted in the opposite side than the SMD, potentiometer threaded through hole from the SMD components' side.
The system was soldered on a universal board.
Link to original thread (useful attachment) -
Tester serwomechanizmów na ATtiny10