X-Git-Url: http://git.techno-innov.fr/?a=blobdiff_plain;f=v04%2FREADME;h=d686ea56c53726d528a5576471828d74aa1fbc78;hb=2a3b309eae02d3d7b01562ebfafcb814c3b56b30;hp=6ce3aeb3c043a860f0a7a36c9927e2d6b91e5e91;hpb=25ce49481d0522395f2fb4c3a17d3e3f4a9d8bbc;p=soft%2Flpc82x%2Fexanh

diff --git a/v04/README b/v04/README
index 6ce3aeb..d686ea5 100644
--- a/v04/README
+++ b/v04/README
@@ -49,13 +49,41 @@ format is :
   #         addr           type          [other data]
  0x23  (0x01 to 0x1F)  (0x00 to 0xFF)    [....]
 Valid types are :
- - 'a' : all - request to send all available sensor data to host.
+ - 'a' : get all - request to send all available sensor data to host, no data.
  - 'l' : set led color - set the sensor led color. Three bytes of data (RGB).
+ - 'c' : get compensation data from BME280 sensor. (TO BE DEFINED)
 
 It is also possible to broadcast a message to all sensors by sending to address
 255 (0xFF)
 
 
+The response for the "get all" request has the following format :
+  #    (addr | sensors)      data
+ 0x23      1 byte          18 bytes
+
+The second byte holds the address on the fist 5 bits (LSB), and information on
+available sensors on the three top bits :
+addr | sensors : (0x01 to 0x1F) | (got_tsl << 5) | (got_veml << 6) | (got_bme << 7)
+  got_tsl : Set if TSL256x sensor is present and configured
+  got_veml : Set if VEML6070 sensor is present and configured
+  got_bme : Set if BME280 sensor is present and configured
+
+data is a set of nine 16bits values, in network (big) endian order, with the
+following meaning, in this order :
+ - raw_humidity from soil moisture sensor
+ - lux value from TSL256x
+ - ir value from TSL256x
+ - uv value from VEML6070
+ - pressure from BME280
+ - comp_temp from BME280
+ - humidity from BME280
+ - unused - should be 0 (nul)
+ - unused - should be 0 (nul)
+
+
+The response for the "get compensation data" request has to be defined.
+
+
 To set the sensor address using a serial line from a linux host, you can use
 these commands (sensor connected to ttyUSB0) :