i dont even know where i am currently :3

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2026-03-28 08:28:39 -06:00
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# Version 3
## To Figure Out
1. Details on the NEO-F10T/breakout
1. Battery
2. GPIO Pinouts
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1. pulse out/in (32kHz 31.25us period/10mhz 1ns period?)
3. [Pulsar Clock](Pulsar-Clock.md)
1. all daaat shit lmao
4. [10MHzReference Sources (If Needed)](10MHz-Reference-Sources.md)
5. figure out how to support Universal Beat Time to high precision
6. Boot up sequence
1. warm ups
2. get signals
3. run services with affinityies
4. check
## Hardware
1. [Raspberry Pi 5 16GB](https://www.adafruit.com/product/6125)
1. Raspberry OS Lite
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1. [Adafruit DS3231 RTC Precision I2C Breakout Module](https://www.adafruit.com/product/3013#tutorials) x1
[CR1220](https://www.adafruit.com/products/380) x1 (Battery)
7. [Gen 10 Timekeeping Specific GPS Module - NEO-F10T](https://gnss.store/collections/neo-f10t-timing-gnss-modules)
1.  
8. GPS Module
1. [Buy Varieties (Europe)](https://gnss.store/collections/neo-f10t-timing-gnss-modules)
1. Make sure **BATTERY** **TYPE** and **APPLICATION** is figured out
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### Wiring of Note
- CLK/PCM/GPIO18/PIN12:
- CLK in/out up to 10mHz (1ns period)
- ![9824306b308e6d2d21274a5bfe933c6b.png](../../_resources/9824306b308e6d2d21274a5bfe933c6b-1.png)
- ![9824306b308e6d2d21274a5bfe933c6b.png](../../_resources/9824306b308e6d2d21274a5bfe933c6b.png)
- only one i2c port?
- mostly all 3v3?
- PCM is kinda like DAC?