assembly
Assembly CHPC steps.
- Your copy of PCB
- Power source with piece of plastic as dielectric spacer and screws with plastic spacers: put it all together
- Hint: this step allows you to hold PCB vertically without external devices. It's handily to solder some components in this position.
- Resistors
- Insert the resistors through the board. Bend the leads slightly to hold resistors in place.
Solder it in place. Trim the leads. Other through-hole components soldering can be done the same way.
- RS485, DS18B20, EEV, i2c and inputs connectors
- Capatitors and IC 817
Hint: remember that points at IC and at PCB must be on same pin.
- Short Prot.4 Prot.5 and IG with wires.
- ULN2003 + DIP16 cases
Hint: remember about markup on board, case and IC itself.
- 2.54 female connectors to Arduino and rs-485.
Hint: if you do have only large header you can trim it into custom sizes.
- Put headers to pins as shown below, insert into CHPC and solder it.
- 12V input, 12-to-5 stab, buzzer and 2n2222.
Hint: 7805 case must be slightly over the PCB if you do not use any spacers.
- LEDs and resistors. Not very important part you can omit this. Longer pins to the center of array, like at photo below.
- Relays. Prepare a large piece of alloy to add between PWR_IN and "Relay 5" that drives Compressor.
- Final connectors and buttons.
- Add alloy to PCB like below.
Finaly, soldering is completed and the fruits of labor should looks like this:
Add power source wiring
Mount display module (optional).
Thats all, now you can mount and use it. !!! Remember about high volage !!!