BoxMod µC
author: zeroflow
2 layer board of 0.72 x 1.53 inches (18.2 x 38.9 mm)
Uploaded:
June 2nd 2015
Shared:
June 9th 2015
Total Price:
$5.45
BOM
All SMD Parts in 0805
- U1: Atmel ATTINY84-20SSU
- U2: STm KF50BDT-TR (5V LDO, DPAK)
- Q1: SOT-23 NPN Transistor (BCX70G)
- Q2: SOT-23 P-Channel MOSFET (NTR4171PT1G)
- R1 & R2: Battery voltage divider (100k & 68k for 12V)
- R3: 10k Reset Pull-Up
- R4 & R7: 10k Pulldowns for output Stage
- R5: 100Ω current limiting
- R6: 10k PullUp for Mosfet
- C*: Ceramic Cap 0.1µF
Feel free to replace the LDO or output stage with parts you have in spare.
BOM
All SMD Parts in 0805
- U1: Atmel ATTINY84-20SSU
- U2: STm KF50BDT-TR (5V LDO, DPAK)
- Q1: SOT-23 NPN Transistor (BCX70G)
- Q2: SOT-23 P-Channel MOSFET (NTR4171PT1G)
- R1 & R2: Battery voltage divider (100k & 68k for 12V)
- R3: 10k Reset Pull-Up
- R4 & R7: 10k Pulldowns for output Stage
- R5: 100Ω current limiting
- R6: 10k PullUp for Mosfet
- C*: Ceramic Cap 0.1µF
Feel free to replace the LDO or output stage with parts you have in spare.