Hardware watchdog
About the Hardware watchdog PCB
Hardware watchdog is an open source PCB design by rmingon, published on GitHub. It is a 2-layer board measuring 17.8 × 25.4 mm, with 13 components from 10 distinct parts.
Other key parts include the TPL5010. By type, the board carries 4 jumpers, 1 IC, 1 connector, 1 switch and 1 resistor.
From the project
PCB Hardware watchdog based on TPL5010
- VDD - 1.8 to 5.5V - GND - DELAY (DLY) - Time Interval set and Manual Reset - DONE - Logic Input for watchdog functionality - WAKE - Timer output signal generated every Digital pulsed signal to wake up the µC at the end of tIP period. - RST - Reset Output (open drain output)
Main components on the Hardware watchdog
Hardware watchdog bill of materials (BOM)
13 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPL5010 | SOT-23-6 | U1 |
| 1 | Conn_01x06 | PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | 5.2K | R_0201_0603Metric | 1S |
| 1 | 7.628K | R_0201_0603Metric | 3S |
| 1 | 8.85K | R_0201_0603Metric | 5S |
| 1 | 500 | R_0201_0603Metric | 100MS |
| 1 | 2.5K | R_0201_0603Metric | 500MS |
| 4 | Jumper_2_Open | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1, JP2, JP4, JP5 |
| 1 | SW_Push | SW_SPST_B3U-1000P | SW1 |
| 1 | 10K | R_0201_0603Metric | R5 |
Hardware watchdog design files
The KiCad project lives in the rmingon/hardware-watchdog repository on GitHub; these links point at the commit this page was built from.
- Layoutpcb/pcb.kicad_pcb
- Schematicpcb/pcb.kicad_sch
Hardware watchdog: common questions
How big is the Hardware watchdog PCB?
The Hardware watchdog measures 17.8 × 25.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Hardware watchdog?
13 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Hardware watchdog design files?
From the rmingon/hardware-watchdog repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Hardware watchdog design in my own project?
The repository has no license, so all rights stay with rmingon. Use it as a reference, and ask the author before reusing the design.