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Merge pull request #4 from ssisbit/ssisbit-patch-1
document the hardware
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# ssis:bit hardware | ||
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The foundation of the ssis:bit is a [LilyGo T8 ST7789](https://circuitpython.org/board/lilygo_ttgo_t8_s2_st7789/) board with [CircuitPython](https://circuitpython.org/). It has already many key features out of the box: | ||
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- ESP32-S2 with 240 MHz CPU, 4GB Flash, 8GB PSRAM | ||
- 1.14" ST7789 Display 240x135 | ||
- WIFI4 2.4 GHz | ||
- microSD card slot for sensor data or images | ||
- battery charging circuit, on/off power switch | ||
- USB-C connector | ||
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![T8 running CircuitPython](ssis.bit_2022-01-06.jpg) | ||
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To make it even easier and versatile to use we added a secondary PCB to add the following functionality: | ||
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- QWIIC I2C connector for sensors and other perepherial | ||
- 3 buttons as input (menu selector) | ||
- 500 mAh battery in space between the PCBs | ||
- MPU6050 accelerometer and magnetometer and temperature sensor | ||
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## v1.0 First official edition | ||
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Ordered at PCBway this is the first official PCB to share with our students. | ||
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## v0.2 3-way selector | ||
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We got some ... from Aliexpress and the protptype looks like this | ||
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## v0.1 first prototype | ||
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`2022-01-06` | ||
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The first boards arrived early January 2022 and this is the first soldered PCB with a 500 mAh battery: | ||
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\[picture\] |
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