Servo HiTec HS-311
Below are photographs of the HiTec HS-311 servo internals.
The PCB measures 38mm by 18mm.
The HiTec HS-311 servo works very well with the OpenServo version 1.1 PCB and software. In many respects this servo is very similar to the Futaba S3003. It can be obtained for less than $10 from places such as Tower Hobbies. Unfortunately, HiTec uses "hot glue" on the motor making it very difficult to completely disassemble the servo. The PCB must be de-soldered from the motor before it can be removed from the servo.
This is a picture of the bottom side of the PCB after removal from the servo. The PCB is single sided.
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