2 layers35 × 38.4 mm
Handgelenk
Jeija/esp8266-smartwatch
ESP8266 DIY WiFi Smartwatch with MPU-9250, RTC, OLED, FT232, ...
61 parts233
2 layers
Saxionssp
nw1728/Study1What i study. including y2q1 here
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 126
- Pads
- 189
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Nov 2025
- Updated
- 6 Nov 2026
Overview
Saxionssp is an open-source printed circuit board by nw1728, from the nw1728/Study repository on GitHub. It is a 2-layer board with 8 parts on 126 nets.
It is built around the MPU-9250 and MAX17335X22+T. It belongs with the ESP32 and AVR (ATmega, ATtiny) boards of this library.
Main components
2
MPU-9250
QFN-24-EP(3x3)-40℃~+85℃ 2.4V~3.6V 8uA IMU (accelerometer + gyroscope) Motion event detection SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps QFN-24-EP(3x3) Accelerometers ROHSTDK InvenSenseAccelerometers
MAX17335X22+T
WLP-15(1.9x2.5)-40℃~+85℃ 1 2.16V~4.9V 35uA Charging IC、Protection IC、Monitoring IC I2C Lithium Battery Support Support WLP-15(1.9x2.5) Battery Management ROHSMaxim Integrated (Analog Devices)Battery Management
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | MPU-9250 | Sensor_Motion:InvenSense_QFN-24_3x3mm_P0.4mm | U2, U3, U4, U5, U6, U7 |
| 1 | Arduino_Nano_ESP32 | Module:Arduino_Nano | A1 |
| 1 | MAX17335X22+T | 21-100433_W151J2+1_ADI:21-100433_W151J2&plus_1_ADI | U8 |
Questions
What parts does the Saxionssp use?
8 parts, built around the MPU-9250 and MAX17335X22+T. 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 Saxionssp KiCad files?
From the nw1728/Study repository on GitHub, at the commit this page was made from: the board is 2025-2026/q3/SSP/kicad/saxionssp/saxionssp.kicad_pcb and its schematic 2025-2026/q3/AdvancedMicroController/MacroPad/misc/PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Saxionssp design in my own project?
Its repository states no licence, so its author keeps all rights: ask nw1728 before reusing the design.
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