

EnchantiS3
Repository for the hardware and firmware files for the EnchantiS3 board
- Size
- 55.9 × 25.4 mm
- Copper layers
- 4
- Thickness
- 1.71 mm
- Parts
- 68
- Nets
- 83
- Pads
- 301
- Tracks, vias
- 523, 100
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 30 Mar 2024
- Updated
- 5 Aug 2026
Overview
EnchantiS3 is an open-source printed circuit board by aburt2, from the aburt2/EnchantiS3 repository on GitHub. It is a 4-layer board of 55.9 × 25.4 mm with 68 parts on 83 nets, routed with 523 tracks and 100 vias.
It is built around the MCP73871EV, MAX17262REWL+T and USBLC6-2P6, with the BSS138, B3U-1000P and ICM-20948 among its other parts. Its parts include 21 resistors, 18 capacitors, 6 ICs, 3 transistors and 2 switches. It belongs with the ESP32 boards of this library.
Main components
6MCP73871EV
-ModulesMicrochip TechnologyMAX17262REWL+T
WFBGA-9-40℃~+85℃ 1 2.3V~4.9V 5.2uA I2C Lithium Battery、LiFePO4 Battery Monitoring IC Not supported Support WFBGA-9 Battery Management ROHSMaxim Integrated (Analog Devices)Battery ManagementUSBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETsB3U-1000P
SMD,3x2.5mm-25℃~+70℃ 1.53N 1.6mm 12V 2.5mm 3mm 50mA Round Button SMD(SMT) Tab SPST Surface Mount,Vertical SMD,3x2.5mm Tactile Switches ROHSOmronTactile SwitchesICM-20948
QFN-24(3x3)-40℃~+85℃ 0.5KB 1.71V~3.6V 16bit 8uA Accelerometer Gyroscope SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps QFN-24(3x3) Accelerometers ROHSTDK InvenSenseAccelerometers
README
README.mdEnchantiS3
Repository for hardware and firmware for the EnchantiS3 board. The EnchantiS3 is a board based on the ESP32-S3 WROOM 2 module from Espressif. It includes a fuel gauge and inertial measurement unit (IMU). The board can be powered from both the USB-C port or a 3.7V lithium ion battery.
Parts
68| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 1uF | Capacitor_SMD:C_0402_1005Metric | C4, C5, C9, C10, C11, C12, C16, C17 |
| 6 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R3, R8, R10, R22, R24 |
| 6 | 2k2 | Resistor_SMD:R_0402_1005Metric | R14, R15, R16, R19, R21, R23 |
| 5 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C1, C6, C7, C15, C19 |
| 3 | 10k | Resistor_SMD:R_0402_1005Metric | R5, R9, TH1 |
| 3 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C13, C14 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C3, C8 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R6, R7 |
| 2 | B3U-1000P | Button_Switch_SMD:SW_SPST_B3U-1000P | SW1, SW2 |
| 2 | JST-SH-1.00mm 1x2 | Connector_JST:JST_SH_BM02B-SRSS-TB_1x02-1MP_P1.00mm_Vertical | ANG1, ANG2 |
| 2 | JST-SH-1x04 1.0mm | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | TOUCH1, TOUCH2 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965 | H1, H2 |
| 2 | NCP167AMX330TBG | NCP167AMX330TBG-footprints:XDFN4_1X1_711AJ_ONS | U3, U5 |
| 1 | 0.47uF | Capacitor_SMD:C_0402_1005Metric | C2 |
| 1 | 110k | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 24.9k | Resistor_SMD:R_0402_1005Metric | R17 |
| 1 | 2k | Resistor_SMD:R_0402_1005Metric | R20 |
| 1 | 330k | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | ESP32-S3-WROOM-2 | PCM_Espressif:ESP32-S3-WROOM-2 | MCU1 |
| 1 | GENERAL STATUS | LED_SMD:LED_0402_1005Metric | STATLED2 |
| 1 | ICM-20948 | ICM20948-footprints:QFN24_3X3X0P9_IVS | IMU1 |
| 1 | JST-PH-1x02-2.000mm | Connector_JST:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | BT1 |
| 1 | LAYOUT | pin-layout:board-layout | BOARDLAYOUT1 |
| 1 | LOGO | logos:McGill_logo | G*** |
| 1 | LOGO | logos:IDMIL_logo | G*** |
| 1 | MAX17262REWL+T | max17262-footprints:21-100221A_W91G1&plus_3_MXM | U6 |
| 1 | MCP73871 | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U2 |
| 1 | NCP167AMX180TBG | NCP167AMX330TBG-footprints:XDFN4_1X1_711AJ_ONS | U4 |
| 1 | PG | LED_SMD:LED_0402_1005Metric | CHARGLED3 |
| 1 | S1 | LED_SMD:LED_0402_1005Metric | CHARGLED1 |
| 1 | S2 | LED_SMD:LED_0402_1005Metric | CHARGLED2 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | WIFISTATUS | LED_SMD:LED_0402_1005Metric | STATLED1 |
Similar boards
- 2 layers62.2 × 25.4 mm

- 4 layers89 × 54 mm

OBCProto
Kmshanley/PicoSat-Initiative
The pocket cube standard requires satellites to be 5x5x5cm and under 250 grams. Upon completion of this Wentworth PicoSat it will become one of the smallest satellites capable of high resolution imagery from LEO.
126 parts3GPL-3.0 - 4 layers105.6 × 104.8 mm

- 4 layers71.5 × 71.5 mm

Elixir
golioth/elixir-hw
An open source hardware device that has cellular, wifi, bluetooth, GPS, and more!
249 parts36CERN-OHL-P-2.0 - 6 layers57 × 25.9 mm

R7FS7MOD
Brazil-L/Lumeward-OpenSource
Open-source Lumeward firmware and development tools
228 parts2Apache-2.0 - 6 layers45 × 115 mm

- 2 layers23.5 × 37.5 mm

Mk2
jeffc/nrf52-watch-obsolete
obsolete repository - see https://github.com/jeffc/nrf52-watch-firmware
55 parts6 - 6 layers14.8 × 12.6 mm

Power Board
esl-epfl/X-MODs
Modular hardware platform based on the RISC-V X-HEEP family architecture developed at ESL, targeting ultra-low-power consumption and miniaturization, facilitating the creation of wearable devices for clinical trials
31 parts3
Questions
How big is the EnchantiS3 PCB?
It measures 55.9 × 25.4 mm and has 4 copper layers, 1.71 mm thick.
What parts does the EnchantiS3 use?
68 parts, built around the MCP73871EV, MAX17262REWL+T, USBLC6-2P6 and BSS138. 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.
Where can I download the EnchantiS3 KiCad files?
From the aburt2/EnchantiS3 repository on GitHub, at the commit this page was made from: the board is enchantiS3-board/enchantiS3.kicad_pcb and its schematic enchantiS3-board/enchantiS3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EnchantiS3 design in my own project?
Its repository states no licence, so its author keeps all rights: ask aburt2 before reusing the design.