1.3-dev

2025-10-29 19:01:17 -06:00
parent 832a1a81d1
commit 79340916d5
5 changed files with 50 additions and 59 deletions
@@ -0,0 +1,21 @@
+# Notes
+## Cable Delay
+gps cable delay :  RG-85 : 0.051 ns/cm  
+10ft in cm: 304.8  
+gps cable delay: 304.8*0.051 = 15.5448ns, round up to 16ns  
+
+## pins running
+### GPS
+#### gps WORKING
+yellow - 3.3v - pi physical #17 (3.3)
+black - gnd - pi physical #6 (gnd)
+white - pps - pi Physical #12 (gpio 18)
+blue - rx (module) to tx (pi) pi physical #8 (tx)
+green - tx (module) to rx (pi) pi physical #10 (rx)
+baud 9600
+### RTC
+#### i2c rtc WORKING!
+red - 3.3v - pi physical #1 (3.3)
+black - gnd - pi physical #9 (gnd)
+brown - scl - pi physical #5  (i2c clock)
+green - sda - pi physical #3 (i2c data)
@@ -17,20 +17,4 @@
 | Red   | 1                     | Voltage In        | 1                 | 3.3 Volts     | 3.3 V   | NOT 5V TOLERANT |
 | Black | 9                     | Ground            | 9                 | GND           | 3.3 V   | NOT 5V TOLERANT |
 | Brown | 3                     | SCL1 / I2C Clock  | 5                 | GPIO 4 / SCL1 | 3.3 V   | NOT 5V TOLERANT |
-| Green | 4                     | SDA1 / I2C Data   | 3                 | GPIO 2 / SDA1 | 3.3 V   | NOT 5V TOLERAGE |
-
-# GPS
-# gps WORKING
-yellow - 3.3v - pi physical #17 (3.3)
-black - gnd - pi physical #6 (gnd)
-white - pps - pi Physical #12 (gpio 18)
-blue - rx (module) to tx (pi) pi physical #8 (tx)
-green - tx (module) to rx (pi) pi physical #10 (rx)
-baud 9600
-
-# RTC
-# i2c rtc WORKING!
-red - 3.3v - pi physical #1 (3.3)
-black - gnd - pi physical #9 (gnd)
-brown - scl - pi physical #5  (i2c clock)
-green - sda - pi physical #3 (i2c data)
+| Green | 4                     | SDA1 / I2C Data   | 3                 | GPIO 2 / SDA1 | 3.3 V   | NOT 5V TOLERAGE |
@@ -39,29 +39,11 @@

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

-**U-Blox Software (U-Center)**  https://www.u-blox.com/en/product/u-center
-
-
-notes:
-gps cable delay :  RG-85 : 0.051 ns/cm
-10ft in cm: 304.8
-gps cable delay: 304.8*0.051 = 15.5448ns, round up to 16ns
-
-
-**known bugs**
+**U-Blox Software (U-Center)**  https://www.u-blox.com/en/product/u-center
@@ -24,5 +24,21 @@ manual
 # tell clients im the big dog
 local stratum 1

-# Good Time Servers
-pool time.cloudflare.com iburst
+# NTS Servers
+## Stratum 1
+### Wiktel
+server ntp1.wiktel.com iburst nts maxsamples 1
+server ntp2.wiktel.com iburst nts maxsamples 1
+## Stratum 2
+### Ubuntu
+server 1.ntp.ubuntu.com iburst nts maxsamples 1
+server 2.ntp.ubuntu.com iburst nts maxsamples 1
+### System76
+server ohio.time.system76.com iburst nts maxsamples 1
+server virginia.time.system76.com iburst nts maxsamples 1
+### Cifelli
+server stratum1.time.cifelli.xyz iburst nts maxsamples 1
+server time.cifelli.xyz iburst nts maxsamples 1
+## Stratum 3
+### Cloudflare
+server time.cloudflare.com iburst nts maxsamples 1
@@ -1,6 +1,5 @@
-**todo**
+# Todo
 * case
-* Raspberry OS Lite
 * Document scripts
  * time_fuckery.sh [test]
  * show_running_configs.sh
@@ -37,4 +36,6 @@
    * backup image 
 * check wiring
 * check antenna tight both ends
-* make image backup
+* make image backup
+  
+**Known Bugs**