PowerBox
About the PowerBox PCB
PowerBox is an open source AVR/Arduino PCB design by frep, published on GitHub. It is a 2-layer board measuring 90 × 55 mm, with 103 components from 53 distinct parts.
Its main chip is the ATMEGA32U4, from the AVR/Arduino family. Other key parts include the LM358, 74HC595, ICL7660, INA219 and AP7333. By type, the board carries 37 resistors, 16 diodes, 14 capacitors, 9 ICs, 8 connectors and 5 transistors.
From the project
workspace for kicad projects
PowerBox ======== description is following soon...
Main components on the PowerBox
PowerBox bill of materials (BOM)
103 components, 53 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | LM358 | SOIC8 | IC1, IC2, IC3 |
| 2 | 74HC595 | SO-16-L | U1, U3 |
| 1 | ICL7660 | SOIC8 | U2 |
| 1 | INA219 | SOT-23-8 | U4 |
| 1 | AP7333 | SOT23 | U5 |
| 1 | ATMEGA32U4 | TQFP44 | U6 |
| 5 | DMG3415U | SOT23 | Q1, Q2, Q3, Q4, Q5 |
| 1 | 16MHz | HC49UP | X1 |
| 1 | USB-MICRO | USB_Micro | CON1 |
| 1 | USB-A-Jack | USB-A-Jack | CON2 |
| 1 | USB-MINI-B-Vert | Vertical_USB_Mini_B | CON3 |
| 1 | ICSP | Pin_Proto_Straight_2x03 | P7 |
| 1 | CONN_10 | Pin_Header_Straight_1x10 | P11 |
| 2 | CONN_8 | Pin_Header_Straight_1x08 | P12, P13 |
| 1 | CONN_6 | Pin_Header_Straight_1x06 | P14 |
| 1 | FUSE | C1812 | F1 |
| 1 | JUMPER3 | Pin_Proto_Straight_1x03 | JP1 |
| 1 | + - | Pin_Proto_Straight_1x02 | JP2 |
| 2 | JUMPER | Pin_Proto_Straight_1x02 | JP4, JP5 |
| 1 | PowerBoost | Powerboost1000C | PB1 |
Show 33 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Lipo Select | Switch_SPDT | S1 |
| 1 | Load on/off | Switch_SPDT | S2 |
| 1 | Arduino on/off | Switch_SPDT | S3 |
| 1 | 4_x_7Segment | 4digit7segment | SEG1 |
| 2 | VR | R0805 | VR1, VR2 |
| 1 | Low Battery | LED-0805 | D1 |
| 3 | 5.3V Zener | SOT23 | D2, D10, D12 |
| 2 | SDM40E20LC | SOT23 | D3, D4 |
| 1 | Power Load | LED-0805 | D5 |
| 1 | V bat | LED-0805 | D6 |
| 1 | V load | LED-0805 | D7 |
| 1 | I load | LED-0805 | D8 |
| 1 | P load | LED-0805 | D9 |
| 1 | DL4148 | Diode-MiniMELF_Handsoldering | D11 |
| 1 | RX | LED-0805 | D13 |
| 1 | TX | LED-0805 | D14 |
| 1 | Power Ard. | LED-0805 | D15 |
| 1 | IO 13 | LED-0805 | D16 |
| 1 | Ferrit bead | R0805 | L1 |
| 5 | 10uF | C0805 | C1, C2, C3, C4, C10 |
| 2 | 18pF | C0805 | C5, C7 |
| 3 | 100NF | C0805 | C6, C8, C16 |
| 4 | 1uF | C0805 | C9, C11, C12, C18 |
| 9 | 10K | R0805 | R1, R2, R3, R6, R24, R25, R27, R36 +1 |
| 18 | 220R | R0805 | R4, R5, R7, R8, R9, R10, R16, R17 +10 |
| 1 | 300R 1% | R0805 | R11 |
| 2 | 49.9K 1% | R0805 | R12, R15 |
| 1 | 78.7K 1% | R0805 | R13 |
| 1 | 43K 1% | R0805 | R14 |
| 1 | 1M | R0805 | R26 |
| 1 | 0.1R 1% | R1206 | R28 |
| 2 | 22R | R0805 | R29, R30 |
| 1 | 1K | R0805 | R35 |
PowerBox design files
The KiCad project lives in the frep/kicad repository on GitHub; these links point at the commit this page was built from.
PowerBox: common questions
What microcontroller does the PowerBox use?
The PowerBox is built around the ATMEGA32U4, from the AVR/Arduino family.
How big is the PowerBox PCB?
The PowerBox measures 90 × 55 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the PowerBox?
103 components, from 53 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the PowerBox design files?
From the frep/kicad repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the PowerBox design in my own project?
The repository has no license, so all rights stay with frep. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the PowerBox without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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