Summary of DIGITAL SERVO MOTORS INTERFACE CIRCUIT PIC16F877
The project describes a PIC-based servo motor interface that converts RS232 serial commands from a PC into PWM servo control signals, supporting either 8 servos (PIC16F876) or 16 servos (PIC16F877). PCB designs and schematics were created with Eagle and Assembly PCB software.
Parts used in the Servo Motor Interface Circuit:
- PIC16F876 microcontroller (for 8-servo SER8 version)
- PIC16F877 microcontroller (for 16-servo SER16 version)
- RS232 serial interface components (RS232 level shifter such as MAX232 or equivalent)
- Crystal oscillator or clock source for PIC
- Capacitors for oscillator and decoupling
- Resistors as required for MCU and signal lines
- Servo connector headers (for 8 or 16 servos)
- Power supply components for servos and logic (voltage regulator, filtering)
- PCB fabricated via Assembly PCB software and schematics made with Eagle
Servo motor control unit to control two’s. While the other one circuit pic16F877 16f876 circuits based on the communication with the computer via RS232 serial port is doing. Kazırl backed by Assembly PCB software and schema files are made with eagle.
Servo interface circuit can translate the servo commands, sent through serial connection, to the servo control signal. Using a microcontroller (PIC micro) to elaborate these signals, we built an interface circuit that can support 8/16 servos simultaneously. The 8 servos version (SER8) uses a PIC16F876 (28 pins) microcontroller, the 16 servos version (SER16) uses a PIC16F877
Source: DIGITAL SERVO MOTORS INTERFACE CIRCUIT PIC16F877
- What does this servo interface circuit do?
It translates servo commands received via RS232 serial connection into servo control signals using a PIC microcontroller. - Which microcontroller is used for the 8-servo version?
The 8-servo version (SER8) uses a PIC16F876 microcontroller. - Which microcontroller is used for the 16-servo version?
The 16-servo version (SER16) uses a PIC16F877 microcontroller. - How does the circuit communicate with the computer?
Communication with the computer is done via the RS232 serial port. - How many servos can the interface support simultaneously?
The interface can support either 8 servos (SER8) or 16 servos (SER16) simultaneously. - What software was used to create the PCB and schematics?
PCB files were made with Assembly PCB software and schematics were created with Eagle. - Does the circuit require additional components for RS232 signaling?
Yes, RS232 level shifting components (for example MAX232 or equivalent) are required for serial communication. - Are separate power supplies needed for servos and logic?
The project includes power supply components for servos and logic, implying appropriate voltage regulation and filtering are used.
