Bauteilliste und Lötanleitung
| Anzahl | Bauteil | Bezeichnungen |
|---|---|---|
| 9 | 100nF Kondensator | C3, C4, C5, C6, C7, C9, C10, C11, C12 |
| 2 | 15pF Kondensator (Grün) | C1,C2 |
| 2 | 4,7µF Kondensator | C13, C15 |
| 1 | 10µF Kondensator (Blau) | C14 |
| 1 | 1µF Kondensator | C16 |
| 3 | 1k Ohm Widerstand | R1, R7, R9, R12 |
| 3 | 10k Ohm Widerstand | R2, R5, R8 |
| 2 | 27 Ohm Widerstand (Rot) | R3, R4 |
| 2 | 5,1k Ohm Wiederstand | R10, R11 |
| 1 | 24k Ohm Widerstand | R6 |
| 1 | Batteriestecker | Bat |
| 1 | USB C Buchse | USB |
| 1 | Ein-Aus-Schalter | On |
| 1 | Boot-Taster | Boot |
| 1 | RP2040 MCU | U1 |
| 1 | W25Q32JVSS Flash-Speicher | U2 |
| 1 | RT9090-33 3.3V Spannungsregler | U3 |
| 1 | MCP73871-2AA LiPo Ladecontroller | U4 |
| 1 | Strombegrenzer | U5 |
| 1 | 12Mhz Quarz | Y1 |
| 10 | Neopixel reverse mount Led | D1-D10 |
Solder Instructions
Nothing Presoldered: start here
- Choose one of the two stencils we provide: one presolders only the otherwise impossible stuff (leaving you with a badge with hard difficulty), the other leavesyou with a badge on normal difficulty.
- Put your badge into the contraption, and line the pads up with the stencil holes.
- Agitate the solder paste with the scraper
- Distribute evenly through the stencil; don't use too much, especially on the usb port.
- Lift the stencil with confidence.
- Place the components: we recommend starting with the large stuff, especially the rp2040. Some components are directed: this is indicated with dots and triangles.
- Carefully put the badge on the heating plate.
- Set the heating plate to 120 degrees C
- After the plate has come to temperature, use the hot air gun to help the solder melt. The rp2040 and the usb port need more attention than the other parts.
- After everything has melted, lift the badge from the station with teezers, keeping it horizontal. Caution: Hot!
- After the badge has cooled down, Inspect everything for solder bridges and contacts with too little solder (We have magnifiying glasses and microscopes).
- To fix bridges, generously put flux on the affected area and drag a clean, hot soldering iron across the pins. Clean your iron after every swipe!
- To fix areas with too little solder, do the same but with a small drop of solder on your iron.
- For the rest of the badge: see below.
Hard difficulty: few things presoldered
- We reccomend starting with the small things first (capacitors and resistors).
- These are not oriented. Heat one pad and put a small amount of solder on.
- Keep this pad in melt while sliding in the component with tweezers from the other side.
- Now add solder to the other side
- The flash (U2) is done similarly, but it is oriented (the dot must match the marking on the pcb).