Overview
Happy Rain Cloud is a super cute learn-to-solder kit, designed for people of all ages to have a fun, easy project to learn how to solder.
It has 3 self-flashing LEDs that act as the cloud's rain drops, an on/off switch, and includes a CR2032 battery.
Solder Battery Holder
Solder the Switch
Solder the LEDs
When soldering LEDs, start with only soldering 1 leg on each LED. You can them flip the board over, if any of the LEDs aren't laying flat on the board you can reflow the solder while pressing down on the LED lens. Once all the LEDs are laying flat, you can solder the 2nd leg and clip off the ends.
*Note: The front silkscreen shows which way the LED should be facing. The long LED leg should go through the bottom hole and the short LED leg should go through the top hole.


Solder 3V USB Adapter Board
Line up the adapter board on the back of the PCB. We find it helpful to use a piece of tape to holde the adapter board in place while soldering it. Solder each end marked with a + on the board, then remove the tape and solder the 3rd point in the middle of the board to the large GND pad.
*If your kit came with a battery and battery holder go to V1 instructions



Solder the Switch


Solder the LEDs
When soldering LEDs, start with only soldering 1 leg on each LED. You can them flip the board over, if any of the LEDs aren't laying flat on the board you can reflow the solder while pressing down on the LED lens. Once all the LEDs are laying flat, you can solder the 2nd leg and clip off the ends.
We usually use a spool of solder wick to support the other side of the board while soldering. (you can use anything that's a similar height to the board)





Insert Battery and Turn On!
The switch turns the LEDs ON and OFF.
Match the + side of the battery to the + side of the battery holder.


Place Magnet or Adhesive Pin (optional)

