BenchyReloaded VoltMeter
About the BenchyReloaded VoltMeter PCB
BenchyReloaded VoltMeter is an open source STM32 PCB design by Daxxn, published on GitHub under the AGPL-3.0 license. It is a 2-layer board measuring 49.5 × 61 mm, with 130 components from 80 distinct parts.
Its main chip is the STM32MP157FAB1, from the STM32 family. Other key parts include the TPS65400RGZT, NCP51200, ATTINY416-MNR, TLV3401 and MAX15027. By type, the board carries 63 resistors, 46 capacitors, 12 ICs, 4 connectors, 2 switches and 1 crystal.
From the project
New and improved Benchy, now with more doodads!
Your electronics workbench buddy! (Warning - Benchy is not actually your buddy and will probably try to kill you. It's hideously expensive, and way too time consuming to build!)
- Single Board Computer running embedded linux - 5 Port USB 3.1 hub - All data ports are properly protected agains over-current and backfeeding - 2 USB 2.0 ports for the SBC peripherals (keyboard/mouse) - 2 1Gb Ethernet ports - 8 Software controlled relays for general things like lighting - (In Development) Lab Power Supply W/ Current or Voltage Limiting (15V @ 2A) - Lighting system that can drive 4 RGBW, 2 RGB, 6…
Main components on the BenchyReloaded VoltMeter
BenchyReloaded VoltMeter bill of materials (BOM)
130 components, 80 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32MP157FAB1 INA826AIDRGR | Texas_S-PWSON-N8_EP1.2x2mm | U1 |
| 1 | TPS65400RGZT INA826AIDRGR | Texas_S-PWSON-N8_EP1.2x2mm | U2 |
| 1 | NCP51200 INA826AIDRGR | Texas_S-PWSON-N8_EP1.2x2mm | U3 |
| 1 | ATTINY416-MNR INA826AIDRGR | Texas_S-PWSON-N8_EP1.2x2mm | U4 |
| 1 | TLV3401 INA826AIDRGR | Texas_S-PWSON-N8_EP1.2x2mm | U5 |
| 1 | MAX15027 INA826AIDRGR | Texas_S-PWSON-N8_EP1.2x2mm | U6 |
| 1 | SN74LVC1G32 INA826AIDRGR | Texas_S-PWSON-N8_EP1.2x2mm | U7 |
| 1 | 74HCT2G08 INA826AIDRGR | Texas_S-PWSON-N8_EP1.2x2mm | U8 |
| 1 | AP2127K-3.3 TPS7A94 | WSON-10-1EP_3x3mm | U9 |
| 1 | USB7206C AP3401 | DFN-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U10 |
| 1 | 0803-0003 APX321 | SOT-23-5 | U11 |
| 1 | UCS2114 TPS7A94 | WSON-10-1EP_3x3mm | U12 |
| 1 | 24MHZ 8MHz | Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm | Y1 |
| 1 | POWER CONN | 4-Pin_Molex_Mini-Fit_Jr_Vertical | J1 |
| 1 | DSUB-26 | K66X-A26P-N | J2 |
| 1 | MB-COMMS | JST_XH_B4B-XH-A_Vertical | J3 |
| 1 | SWD-TAG | Tag-Connect_TC2050-IDC-FP_2x05_P1.27mm_Vertical | J4 |
| 1 | 1101-0000 RESET-SW | TL3365AF180QG | S1 |
| 1 | STM32F303RCT6TR | LQFP-64_10x10mm_P0.5mm | STM1 |
| 1 | BOOT-SW | EG1218 | SW1 |
Show 60 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 22UH 2.2uH | LQH3NPN | L1 |
| 1 | 100NF 22pF | C_0402_1005Metric | C1 |
| 10 | 100NF 100nF | C_0402_1005Metric | C2, C6, C9, C24, C25, C26, C27, C42 +2 |
| 1 | 47UF 100nF | C_0402_1005Metric | C3 |
| 1 | 10UF 10uF | C_1210_3225Metric | C4 |
| 5 | 100NF 10uF | C_1210_3225Metric | C5, C7, C10, C41, C45 |
| 2 | 100NF 4.7uF | C_0402_1005Metric | C8, C46 |
| 1 | 100NF 1uF | C_0805_2012Metric | C11 |
| 5 | 100NF 100uF | C_0402_1005Metric | C12, C13, C14, C15, C40 |
| 2 | 1UF 100uF | C_0402_1005Metric | C16, C19 |
| 1 | 10UF 100uF | C_0402_1005Metric | C17 |
| 1 | 47PF 100uF | C_0402_1005Metric | C18 |
| 4 | 1UF 100nF | C_0402_1005Metric | C20, C21, C22, C28 |
| 1 | 330PF 100nF | C_0402_1005Metric | C23 |
| 2 | 10UF 100nF | C_0402_1005Metric | C29, C38 |
| 1 | 117PF 1nF | C_0402_1005Metric | C30 |
| 1 | 1NF 1nF | C_0402_1005Metric | C31 |
| 4 | 100NF 1nF | C_0402_1005Metric | C32, C34, C35, C36 |
| 1 | 100PF 1nF | C_0402_1005Metric | C33 |
| 1 | 1UF 1nF | C_0402_1005Metric | C37 |
| 1 | 820PF 100nF | C_0402_1005Metric | C39 |
| 1 | 24K 100K | R_0402_1005Metric | R1 |
| 1 | 24K 430K | R_0402_1005Metric | R2 |
| 3 | 10K | R_0402_1005Metric | R3, R5, R11 |
| 1 | 7.5K 10K | R_0402_1005Metric | R4 |
| 1 | 6.2K 22.1K | R_0402_1005Metric | R6 |
| 1 | 10K 183.44K | R_0402_1005Metric | R7 |
| 1 | 10K 12.5K | R_0402_1005Metric | R8 |
| 1 | 10K 15K | R_0402_1005Metric | R9 |
| 1 | 13K 10K | R_0402_1005Metric | R10 |
| 1 | 15K 10K 0.1% | R_0402_1005Metric | R12 |
| 1 | 8.2K 10K 0.1% | R_0402_1005Metric | R13 |
| 1 | 4.3K 10K 0.1% | R_0402_1005Metric | R14 |
| 2 | 10K 10K 0.1% | R_0402_1005Metric | R15, R19 |
| 1 | 11K 10K 0.1% | R_0402_1005Metric | R16 |
| 2 | 2.2K 10K 0.1% | R_0402_1005Metric | R17, R18 |
| 5 | 10K 10M 1% | R_0805_2012Metric | R20, R24, R30, R32, R34 |
| 1 | 160K 256K 1% | R_0805_2012Metric | R21 |
| 1 | 160K 10M 1% | R_0805_2012Metric | R22 |
| 2 | 10K 256K 1% | R_0805_2012Metric | R23, R25 |
| 1 | 500 10M 1% | R_0805_2012Metric | R26 |
| 2 | 256K 1% | R_0805_2012Metric | R27, R29 |
| 1 | 10M 1% | R_0805_2012Metric | R28 |
| 2 | 500 256K 1% | R_0805_2012Metric | R31, R33 |
| 1 | 6.8K 256K 1% | R_0805_2012Metric | R35 |
| 4 | 10K 1% | R_0402_1005Metric | R36, R47, R51, R53 |
| 1 | 10K | Bourns_3214W_Vertical | R37 |
| 2 | 500 100 1% | R_0402_1005Metric | R38, R40 |
| 1 | 500 10K 1% | R_0402_1005Metric | R39 |
| 3 | 10K 10K 1% | R_0402_1005Metric | R41, R43, R49 |
| 1 | 100 100 1% | R_0402_1005Metric | R42 |
| 4 | 100 1% | R_0402_1005Metric | R44, R46, R48, R52 |
| 1 | 100 10K 1% | R_0402_1005Metric | R45 |
| 1 | 10K 100 1% | R_0402_1005Metric | R50 |
| 4 | 10K | R_0402_1005Metric | R54, R57, R58, R61 |
| 2 | 2.2K | R_0402_1005Metric | R55, R56 |
| 1 | 183.44K | R_0402_1005Metric | R59 |
| 1 | 15K | R_0402_1005Metric | R60 |
| 1 | 12.5K | R_0402_1005Metric | R62 |
| 1 | 22.1K | R_0402_1005Metric | R63 |
BenchyReloaded VoltMeter design files
The KiCad project lives in the Daxxn/BenchyReloaded repository on GitHub; these links point at the commit this page was built from.
BenchyReloaded VoltMeter: common questions
What microcontroller does the BenchyReloaded VoltMeter use?
The BenchyReloaded VoltMeter is built around the STM32MP157FAB1, from the STM32 family.
How big is the BenchyReloaded VoltMeter PCB?
The BenchyReloaded VoltMeter measures 49.5 × 61 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the BenchyReloaded VoltMeter?
130 components, from 80 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 BenchyReloaded VoltMeter design files?
From the Daxxn/BenchyReloaded repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the BenchyReloaded VoltMeter design in my own project?
Yes, under the terms of its AGPL-3.0 license, which Daxxn chose for the repository.
Can I test firmware for the BenchyReloaded VoltMeter without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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