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Building GPIC28sov6 Training Circuit

The kit version of the GPIC28sov6 is supplied with the PIC18F26K22 fitted.

The GPIC28sov6 PCB is lead free so it is best to solder the components using lead free solder with a flux which does not need to be cleaned.

Begin by fitting and soldering three resistors and two diodes:-

   R1 = 10k
   R3 = 100k
   R4 = 4k7

   D1 = 1N4148
   D2 = 1N4148

   R2 is not usually fitted

Fit and solder 6 way and 7 way right angle sockets on the underside of the PCB:-

6 way socket connects to
   GY-BM circuit with BMP280 fitted

7 way socket connects to
   P205 programmer
   or
   PICkit3 via 6 to 7 pin adaptor

A 6 pin plug can be fitted instead of the 7 pin socket so that PICkit3 can be plugged directly to the GPIC28sov6. But if this is done the box will have sharp pins poking out of it and the circuit is less flexible. By fitting the 7 way socket it allows either the P205 programmer or PICkit3 to be used. P205 can be used to exchange data with your own programme on your PC - more about this later.

Fit and solder:-                               

C1, C2, C5, C6, C7, C8 = 0.1uF
    ceramic capacitor

Fit and solder:-                               

Two miniature switches

Left = Power on/off
Right = LCD on/off


Fit and solder:-                               

3v regulator
5v regulator

Fit and solder:-                               

Two 2032 coin cell holders.
6 way and 4 way sockets for LCD.
Push switch S2 with short button.

The two pin test socket is optional.
This connects across the on/off switch so the total battery current can be measured when switched to off.

Fit and solder:-                               

6 pin and 4 pin plugs
to the underside of the LCD

The LCD plugs into the GPIC28sov6.

Fit and solder:-                               

   R5 = 10k miniature resistor
   R6 = 10k miniature resistor
   R7 = 1k5 miniature resistor

   S3 = Push button with long button

Fit and solder:-                               

   RGB LED

The long lead MUST go into the hole marked GND.

You may prefer to fit the RGB LED after you have cut the holes in the box. That will allow the LED to be placed neatly through its own hole in the box lid.

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