d0ca3b16f8
- Refactored GPS service and HAL: GPS is no longer part of the HAL configuration. You can now add configure new GPS devices from the GPS settings app. - T-Deck adds a boot hook to check if a GPS configuration exists and adds it when the config is empty. - Implemented the concept of ObjectFile to read/write arrays of a raw data type (e.g. struct) to disk. - Implemented more file utils (e.g. to create all directories of a path)
24 lines
667 B
Markdown
24 lines
667 B
Markdown
# 4 Pin connectors
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Many devices have 4-pin connectors:
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Either a [Grove](https://docs.m5stack.com/en/start/interface/grove) connector or a [JST](https://en.wikipedia.org/wiki/JST_connector) one.
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Boards that implement an I2C/UART configuration for such a connector are advised to always implement both.
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To make it consistent, it's important that the pins are mapped in the same manner:
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## I2C Pins
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Follow the Grove layout:
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Black(GND) - Red(5V) - Yellow(SDA) - White(SCL)
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## I2C Pins
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Follow this Grove layout on the MCU board:
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Black(GND) - Red(5V) - Yellow(RX) - White(TX)
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And this Grove layout on the peripheral:
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Black(GND) - Red(5V) - Yellow(TX) - White(RX)
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