diff --git a/Hardware-design-files.md b/Hardware-design-files.md index 2e2b750..316cf23 100644 --- a/Hardware-design-files.md +++ b/Hardware-design-files.md @@ -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. 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: -Battery - ## Gerber & NC drill design files [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 +### 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: +Battery + ### Special parts for "green board" build **Discrete single pin sockets**: eg: RS 718-5284. (low profile) ![HolTiteSocket](uploads/fc0703aa92c3d3cc559e8b56cd7e57ac/HolTiteSocket.jpg)