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ROV RS485 Receiver

This receiver is designed to take serial TTL input at 300 baud 8N1 on PORTA<4> and produce PWM on PORTB<0-5> and direction bits on PORTB<6-7> and PORTA<0-3>. Here is the mapping of PIC pins to their functions:

H-Bridge #pin #function
06 (PORTB:0)PWM for H-Bridge 0
17 (PORTA:0)Direction bit for H-Bridge 0
17 (PORTB:1)PWM for H-Bridge 1
18 (PORTA:1)Direction bit for H-Bridge 1
28 (PORTB:2)PWM for H-Bridge 2
1 (PORTA:2)Direction bit for H-Bridge 2
39 (PORTB:3)PWM for H-Bridge 3
2 (PORTA:3)Direction bit for H-Bridge 3
410 (PORTB:4)PWM for H-Bridge 4
12 (PORTB:6)Direction bit for H-Bridge 4
511 (PORTB:5)PWM for H-Bridge 5
13 (PORTB:7)Direction bit for H-Bridge 5




Just hookup this receiver to the RS485 line. Power it up and feed the outputs to PWM and direction lines of up to 6 H-bridges.

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