The CDB is a board with an LM339 or any other 4-channel comparator. The board itself can be driven with a voltage of 3V3-15V. The board offers the possibility to compare signals from buttons, switches or any other digital/analog board.
| Experience | Level |
|---|---|
| Soldering |
| Type | File | Description |
|---|---|---|
| Schematic | pdf / cadlab | Schematic files |
| Board | pdf / cadlab | Board file |
| Drill | Drill file | |
| PCB | zip / tar | KiCAD/Gerber/BoM/Drill files |
| Mechanical | zip / tar | FreeCAD/Housing and exported step/stl files |
The pcb is created with KiCAD. All files are built with github actions so that they are ready for a production environment.
The circuit board is populated on both sides (Top, Bottom). The best way for soldering the SMD components is within a vapor phase soldering system and for the THT components with a standard soldering system.
| Type | Link | Description |
|---|---|---|
| LM339 | Low-Power Low-Offset Voltage Quad Comparators |
R. GAECHTER
