Support
Building a FireFly kit? This is the place for build help. Each kit has an interactive parts list (an “iBOM”) that shows the board and every part on it.
How to use it: click a part in the list to highlight exactly where it goes on the board, and tick its checkbox as you place it so you always know what’s left. It opens in a new tab, so you can keep it up next to your soldering station.
FireFly
Click a part to highlight where it goes, then check it off as you place it.
FireFly10 Coming soon
Click a part to highlight where it goes, then check it off as you place it.
Preview — FireFly10 is coming soon
LED Tester
Assembly manuals and interactive placement guides for each version of the LED Tester.
LED Tester v1.1
Click a part to highlight where it goes, then check it off as you place it.
LED Tester v2.0 LCD 0802
Click a part to highlight where it goes, then check it off as you place it.
LED Tester v2.1 OLED 128×64
Click a part to highlight where it goes, then check it off as you place it.
LED Tester v2.1 OLED 128×32
Click a part to highlight where it goes, then check it off as you place it.
Battery connection: Newer boards have 9 V wire pads at B1 for an off-board battery, plus a GND point at TP3. Early boards (the ones we're shipping now) have a 2-pin header at B1 instead. On those, solder the battery snap wires into the B1 header.
Choosing a jar
Both kits fit a wide-mouth mason jar or a wide-mouth pickle jar. The board is 68.6 mm (2.70 in) across, so the inside of the jar mouth has to be at least that wide. Regular-mouth jars are too small. If you’re not sure, measure the opening before you start.