Hi
I recently soldered my components as per schematic below:
The four terminals at the left are to drive an AC servo (Pulse and Direction).
The three terminals at the right are to activate solenoid valves.
The 5V supply and 24V supply share common ground.
Initially, the ATTiny85 performed as programmed though the speed was slow and the direction of the motor was not changing.
I made some improvements and addition as below:
But now the ATTiny85 is not responding, as if it is not programmed! I replaced the chip but not worked.
I have thoroughly checked all the connections. Even I replaced the original code lines within the main LOOP() with just switching on the LED connected to pin #3 but it is not lighting up. I have spent hours to figure out the problem but failed. Could anyone help me with this, please?
Here is is the soldered PCB for reference.
I recently soldered my components as per schematic below:
The four terminals at the left are to drive an AC servo (Pulse and Direction).
The three terminals at the right are to activate solenoid valves.
The 5V supply and 24V supply share common ground.
Initially, the ATTiny85 performed as programmed though the speed was slow and the direction of the motor was not changing.
I made some improvements and addition as below:
But now the ATTiny85 is not responding, as if it is not programmed! I replaced the chip but not worked.
I have thoroughly checked all the connections. Even I replaced the original code lines within the main LOOP() with just switching on the LED connected to pin #3 but it is not lighting up. I have spent hours to figure out the problem but failed. Could anyone help me with this, please?
Here is is the soldered PCB for reference.