RAK4631 is almost feature complete

docs/software/rak-wizblock.md

@@ -4,13 +4,17 @@
 
 https://docs.rakwireless.com/Product-Categories/WisBlock/Quickstart/#wisblock-base-2
 
+FIXME - list required, recommended and optional components
+
 GPS module:
 Supposedly "Install in slot A only" but I think installing on the back would fit better with the OLED.  FIXME.
 https://docs.rakwireless.com/Product-Categories/WisBlock/RAK1910/Overview/#product-description
 
-ST KPS22HB
-baro sensor
+ST LPS22HB 
+baro & temp sensor, i2c address 0x5c
 https://docs.rakwireless.com/Product-Categories/WisBlock/RAK1902/Overview/#product-description
+https://www.st.com/en/mems-and-sensors/lps22hb.html
+https://www.st.com/resource/en/datasheet/lps22hb.pdf
 
 OLED
 https://docs.rakwireless.com/Product-Categories/WisBlock/RAK1921/Overview/#product-features
@@ -27,29 +31,17 @@ https://docs.rakwireless.com/Product-Categories/WisBlock/RAK4631/Datasheet/#spec
 
 ## TODO
 
+* Turn off external 3V3 supply when not using GPS to save power!
 > 3V3_S is another 3.3 V power supply, it can be controlled by the MCU in order to disconnect the power sensors during idle periods to save power. 3V3_S is controlled by IO2 pin on the WisBlock Core board.
 Set IO2=1, 3V3_S is on.
 Set IO2=0, 3V3_S is off.
 
-
-* DONE solder header
-* DONE attach antenna
-* get building (LORA disabled)
-* DONE FIX LEDs
-* DONE FIX BUTTONs
-* DONE FIX I2C assignment
-* FIX LORA SPI
-* FIX GPS GPIO assignment
-* Disable Bluetooth
-* Disable LORA
-* Boot
-* Enable LORA but no TX
-* Enable LORA TX
 * Enable bluetooth
 * Relase as standard part of build (including UF2s)
 * Make this doc into a nice HOWTO: what to order, how to connect (which device in which slots), how to install software
 * Setup battery voltage sensing
 * Set bluetooth PIN support
 * Confirm low power draw
+* Confirm that OLED works
 * send in PR to https://github.com/geeksville/WisBlock for boards define
 *