Update README.md

Hackuarium · Jan 2, 2023 · ed047af · ed047af
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@@ -11,9 +11,9 @@ Electronic design of an avionics for mini rockets.
 On top of an ESP32C3 board connect an **Extension Board**. Both of wich are powered by a mini lithium battery. Other battery for igniter (min 1.5v)
 ## Extension board for ESP32C3 (Micro Controler = µC)
 - Connect all the ports from the ESP to the extension board (with pin header ?)
-- LED donnected to a random port for test (BLINK - also alow to see if µC bugging or lagging)
+- LED connected to a random port for test (BLINK - also allows to see if µC bugging or lagging)
 - Communication I2C with µC
-- Battery powered. Option ot charge just before launch (batery parck, umbilical external connector)?
+- Battery powered. Option ot charge just before launch (batery pack, umbilical external connector)?
 - Switch to turn ON and OFF ? Access from outside the rocket.
 
 ## Ideas
@@ -22,3 +22,19 @@ On top of an ESP32C3 board connect an **Extension Board**. Both of wich are powe
   - Know if an igniter is connected or not (VCC to Igniter to Transistor - connexion to GND with 1 mohm and connexion to I/O with 100 kohm)
 
 
+## Reference
+
+### Components:
+
+- ESP32C3 from seeed https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/
+- Accelererometer GY521, MPU6050:
+  - https://invensense.tdk.com/wp-content/uploads/2015/02/MPU-6000-Datasheet1.pdf
+  - https://parsippany.vidyalaya.org/fut102-gy521.pdf
+- Power switch for igniter: ZXMS6004FF
+  - https://www.diodes.com/assets/Datasheets/ZXMS6004FF.pdf
+- Barometric pressure sensor: MS5637
+  - https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Data+Sheet%7FMS5637-02BA03%7FB1%7Fpdf%7FEnglish%7FENG_DS_MS5637-02BA03_B1.pdf%7FCAT-BLPS0037
+
+### Miscelaneous
+
+- I2C protocol: https://en.wikipedia.org/wiki/I%C2%B2C