43 lines
2.7 KiB
Markdown
43 lines
2.7 KiB
Markdown
# Pins
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## Setup
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todo: splitter
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todo: buy links
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yellow - 3.3v - pi physical #17 (3.3)
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black - gnd - pi physical #6 (gnd)
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white - pps - pi Physical #12 (gpio 18)
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blue - rx (module) to tx (pi) pi physical #8 (tx)
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green - tx (module) to rx (pi) pi physical #10 (rx)
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baud 9600
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rtc WORKING!
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red - 3.3v - pi physical #1 (3.3)
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black - gnd - pi physical #9 (gnd)
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brown - scl - pi physical #5 (i2c clock)
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green - sda - pi physical #3 (i2c data)
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# OLD
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## U-BLOX LEA-M8T-0-10 HUAWEI GPS Module
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**Pins are 2mm pitch**
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**3.3 Volts**
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| Cable | Module Pin | Module Pin Meaning | Raspberry Pi 4 Pin | Voltage | Notes |
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|:-------|:-----------|:-------------------------|:---------------------------|:-----------------|:----------------------------------------------------------|
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| Red | 2 - VCC | Voltage In | 1 - 3.3 Volts Out (Split) | 3.3 V | NOT 5 V TOLERANT |
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| Black | 8 - GND | Ground | 6 - Ground | 3.3 V? | UNKNOWN 3 V AND 5 V TOLERANCES |
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| Yellow | 4 - RST | Hardware Reset | NC? - Not Connected/GPIO? | 3.3 V | NOT 5 V TOLERANT |
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| White | 6 - TP1 | Time Pulse 1/PPS | 12 - GPIO 18 | 3.3 V | NOT 5 V TOLERANT |
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| Purple | 7 - TP2 | Time Pulse 2/PPS | NC? (16 - GPIO 23) | 3.3 V | NOT 5 V TOLERANT |
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| Green | 5 - RXD | UART Receive | 8 - UART Transmit | 3.3 V | NOT 5 V TOLERANT |
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| Grey | 3 - T59XD | UART Transmit | 10 - UART Receive | 3.3 V | NOT 5 V TOLERANT |
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| Orange | 1 - VCC_ANT | Antenna Power Supply | NC? Regulated Power Supply | 5.0 V Max 100 mA | MUST USE REGULATED POWER SUPPLY AND UNKNOWN 3 V TOLERANCE |
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## Adafruit DS3231 Precision RTC Breakout
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**Pins are 2.54mm pitch**
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**3.3 Volts**
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| Cable | Module Pin | Module Pin Meaning | Raspberry Pi 4 Pin | Voltage |
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|:------|:--------------|:-------------------|:--------------------------|:--------|
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| Red | 1 - VIN | Voltage In | 1 - 3v3 Volts Out (Split) | 3.3 V |
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| Black | 2 - GND | Ground | 9 - Ground | 3.3 V |
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| Brown | 3 - SCL | I2C Clock | 5 - GPIO 4 / SCL1 | 3.3 V |
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| Green | 4 - SDA | I2C Data | 3 - GPIO 2 / SDA1 | 3.3 V | |