Update Hardware design files

Ray Jones 2019-01-11 02:52:32 +00:00
parent fd16c0acf3
commit bcec8a16c2

@ -8,12 +8,6 @@ This is not presently supported but was added to the production board as it make
As such, this can be omitted from the build. As such, this can be omitted from the build.
Non volatile storage is achieved using the "persistent" class available in the ESP32 software suite (uses FLASH memory). Non volatile storage is achieved using the "persistent" class available in the ESP32 software suite (uses FLASH memory).
### DS3231
The most cost effective way to source a DS3231 RTC is to obtain a DS3231 Real Time Clock Module For Raspberry Pi from eBay, then use a hot air gun to remove the chip from the module.
As a bonus it comes with a free battery!
The V1 PCB is not designed to take this battery directly, but it could be used as shown in the following image, if some of the solder mask is scraped away to expose the earthy copper:
<img src="uploads/6bf7bf4a40bd265be0909883efbfc699/Battery2.jpg" alt="Battery" width="200"/>
## Gerber & NC drill design files ## Gerber & NC drill design files
[BTCheater.zip](uploads/1390e8b392675d0606f3917f847d874c/BTCheater.zip) [BTCheater.zip](uploads/1390e8b392675d0606f3917f847d874c/BTCheater.zip)
@ -22,6 +16,12 @@ I can wholeheartedly recommend their services, very good quality, and most impor
## Production PCB considerations ## Production PCB considerations
### DS3231
The most cost effective way to source a DS3231 RTC is to obtain a DS3231 Real Time Clock Module For Raspberry Pi from eBay, then use a hot air gun to remove the chip from the module.
As a bonus it comes with a free battery!
The V1 PCB is not designed to take this battery directly, but it could be used as shown in the following image, if some of the solder mask is scraped away to expose the earthy copper:
<img src="uploads/6bf7bf4a40bd265be0909883efbfc699/Battery2.jpg" alt="Battery" width="200"/>
### Special parts for "green board" build ### Special parts for "green board" build
**Discrete single pin sockets**: eg: RS 718-5284. (low profile) **Discrete single pin sockets**: eg: RS 718-5284. (low profile)
![HolTiteSocket](uploads/fc0703aa92c3d3cc559e8b56cd7e57ac/HolTiteSocket.jpg) ![HolTiteSocket](uploads/fc0703aa92c3d3cc559e8b56cd7e57ac/HolTiteSocket.jpg)