1.3-dev
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@@ -39,29 +39,11 @@
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## Setup
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### Requirements
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1. Raspberry Pi with
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1. Raspberry Pi OS Light Version Installed
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2. SSH Access
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3. sudo permissions
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2. A timing specific GPS module, wired to the Raspberry Pi GPIOs:
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1. GPS GND to RPi Physical Pin 6 (GND)
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2. GPS RX to RPi Physical Pin 8 (GPIO 14 / TX (UART))
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3. GPS TX to RPi Physical Pin 10 (GPIO 15 / RX (UART))
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4. GPS PPS to RPi Physical Pin 12 (GPIO 18)
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5. GPS VIN to RPi Physical Pin 27 (3.3 volts)
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1. Raspberry Pi 4+
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2. A timing specific GPS module
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3. I2C RTC Module
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1. RTC GND to Rpi Physical Pin 9 (GND)
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3. RTC SDA to RPi Physical Pin 3 (GPIO 2 / SDA1 (I2C))
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4. RTC RCL to RPi Physical Pin 5 (GPIO 4 / SCL1 (I2C))
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5. RTC VCC to RPi Physical Pin 1 (3.3 volts)
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### Install
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### Hardware
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1. pi4/5 and stuff for it
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2. gps timing module
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3. rtc
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4. battery for rtc
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5. wires
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1. battery for RTC Module
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4. Jumper wire to wire it up
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### Wiring
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[Pins and Wiring Guide](./Pins.md)
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#### OS
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@@ -94,11 +76,7 @@
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6. save and test
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3. Dashboards->New-Import
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1. Upload [Garfana-Visualization.json](./Garfana-Visualization.json)
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2.
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#### Software (Manual)
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Clone the repo
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`git clone https://github.com/PrincessPi3/Precision-Timekeeping-Fuckery.git ~/Precision-Timekeping-Fuckery`
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**raspi-config**
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Run raspi-config
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1. Interface Options->Serial Port
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1. Would you like a login shell to be accessible over serial? **<No>**
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@@ -127,13 +105,4 @@ Run raspi-config
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* Chipset https://www.u-blox.com/en/product/neolea-m8t-series
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* Breakout https://www.ebay.com/itm/134243322249
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**U-Blox Software (U-Center)** https://www.u-blox.com/en/product/u-center
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notes:
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gps cable delay : RG-85 : 0.051 ns/cm
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10ft in cm: 304.8
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gps cable delay: 304.8*0.051 = 15.5448ns, round up to 16ns
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**known bugs**
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**U-Blox Software (U-Center)** https://www.u-blox.com/en/product/u-center
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