
Powerbank devboard
math-milan/PowerbankTestCode
This is a firmware for a Powerbank testboard where i want to evealuate multiple ti chips like the tps25751

BQ40Z80 is an open-source printed circuit board by acha666, from the acha666/BQ40Z80 repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 69 × 46 mm with 97 parts on 72 nets, routed with 420 tracks and 470 vias.
It is built around the BQ40Z80RSMR, AO3401A and AON6411, with the CSD18540Q5B, 1N5819WS and DMN6075S among its other parts. Its parts include 49 resistors, 14 capacitors, 12 transistors, 9 diodes and 5 connectors.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 0R | Resistor_SMD:R_0603_1608Metric | R31, R32, R33, R34, R36, R37, R39, R40 |
| 8 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C13 |
| 8 | 1K | Resistor_SMD:R_0603_1608Metric | R7, R8, R9, R10, R11, R12, R38, R49 |
| 6 | 10M | Resistor_SMD:R_0603_1608Metric | R16, R20, R23, R25, R28, R30 |
| 6 | 43R | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5, R6 |
| 6 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 6 | NC | Resistor_SMD:R_0603_1608Metric | R43, R44, R45, R46, R47, R48 |
| 5 | 5.1K | Resistor_SMD:R_0603_1608Metric | R14, R15, R18, R19, R27 |
| 5 | LED | LED_SMD:LED_0603_1608Metric | D5, D6, D7, D8, D9 |
| 3 | 100R | Resistor_SMD:R_0603_1608Metric | R21, R22, R26 |
| 3 | 200R | Resistor_SMD:R_0603_1608Metric | R35, R41, R42 |
| 3 | D_TVS | Diode_SMD:D_0402_1005Metric | D2, D3, D4 |
| 2 | 100R/2W | Resistor_SMD:R_2512_6332Metric | R17, R29 |
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric | C9, C11 |
| 2 | AON6411 | Package_SON:VSON-8_3.3x3.3mm_P0.65mm_NexFET | Q9, Q10 |
| 2 | CSD18540Q5B | Package_TO_SOT_SMD:TDSON-8-1 | Q8, Q12 |
| 2 | NC | Capacitor_SMD:C_0603_1608Metric | C10, C14 |
| 1 | 0R/NC | Resistor_SMD:R_2512_6332Metric | R13 |
| 1 | 100pF | Capacitor_SMD:C_0603_1608Metric | C12 |
| 1 | 10K@25°C | Resistor_SMD:R_0603_1608Metric | TH1 |
| 1 | 1N5819WS | Diode_SMD:D_SOD-323 | D1 |
| 1 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C8 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q11 |
| 1 | 3mR | Resistor_SMD:R_2512_6332Metric | R24 |
| 1 | BAT+ | BQ40Z80_Footprints:SolderWirePad_1x01_SMD_14x6mm | TP1 |
| 1 | BAT- | BQ40Z80_Footprints:SolderWirePad_1x01_SMD_14x6mm | TP11 |
| 1 | BQ40Z80RSMR | Package_DFN_QFN:QFN-32-1EP_4x4mm_P0.4mm_EP2.65x2.65mm | U1 |
| 1 | Conn_01x02 | Connector_Molex:Molex_PicoBlade_53261-0271_1x02-1MP_P1.25mm_Horizontal | J1 |
| 1 | Conn_01x02_MountingPin | Connector_AMASS:AMASS_XT60PW-F_1x02_P7.20mm_Horizontal | J5 |
| 1 | Conn_01x03 | Connector_Molex:Molex_PicoBlade_53261-0471_1x04-1MP_P1.25mm_Horizontal | J2 |
| 1 | Conn_01x07_MountingPin | Connector_JST:JST_PH_S7B-PH-SM4-TB_1x07-1MP_P2.00mm_Horizontal | J3 |
| 1 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J4 |
| 1 | DMN6075S | Package_TO_SOT_SMD:SOT-23 | Q7 |
| 1 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1 |
| 1 | NetTie_2 | BQ40Z80_Footprints:NetTie-2-234Layers_SMD_Pad0.5mm | NT2 |
| 1 | SFK-3045 | BQ40Z80_Footprints:FUSE-SMD_3P-L9.5-W5.0 | F1 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
It measures 69 × 46 mm and has 4 copper layers, 1.2 mm thick.
97 parts, built around the BQ40Z80RSMR, AO3401A, AON6411 and CSD18540Q5B. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the acha666/BQ40Z80 repository on GitHub, at the commit this page was made from: the board is BQ40Z80.kicad_pcb and its schematic BQ40Z80.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

math-milan/PowerbankTestCode
This is a firmware for a Powerbank testboard where i want to evealuate multiple ti chips like the tps25751

Kaiser041224/HPM5361-RMCS_Slave-Pro
HPM5361-RMCSSlave-V1.0 是一个基于 KiCad 9 的硬件工程,核心主控为 HPM5361ICB1。从顶层框图、层级原理图和关键器件选型来看,这块板更像一块面向机器人/运动控制场景的从控板,用于通信汇聚、PWM 外设输出、姿态感知、板载存储和基础人机交互。

Kaiser041224/HPM5361-RMCS_Slave-Lite
HPM5361-RMCSSlave-Lite 是一个基于 HPM5361IEG1 的嵌入式控制板。以下说明是根据当前 KiCad 工程中的原理图层级、器件选型和 PCB 丝印整理出来的硬件简介;从接口组合来看,这块板更像是一个面向机器人或分布式控制系统的从控/通信节点。

Phil-CIA/Solar-Project-200w
Solar Project 200W is a prototype-first hardware and firmware effort for a 200W-class solar charging system built around a 4S LiFePO4 battery domain.

FilmNeverDie/Farbung
A open source project based on FilmNeverDie's CP800 film processing machine

HeyPCB/quack-core
Brain board for the Open Duck Mini: Pi Zero 2W carrier, 14-servo STS bus, fused 2S power path in stitched copper zones (15-18 A battery side), USB-C charging with balancing, IMU.

Lafayette-Motorsports/LVBoards
LV Board repository for Motorsports created 09.02.2025

HeyPCB/whisker
Drop-in controller for Petoi's Nybble robot cat running the stock OpenCat firmware: ATmega328P, PCA9685, MPU-6050, USB-C, 3 A buck, protected battery input. 4-layer KiCad 10 board plus printed cradle.