c'est la cata, y'a rien qui marche en I2C

Mesures/humidity/bolo/0_get_data - copie.lua

@@ -0,0 +1,57 @@
+-- Lit le capteur I2C HTU21D de mesure d'humidité et de température
+print("\n 0_get_data.lua zf191215.1329 \n")
+
+-- https://cdn-shop.adafruit.com/datasheets/1899_HTU21D.pdf
+-- Comparaison DHT22, AM2302, AM2320, AM2321, SHT71, HTU21D, Si7021, BME280
+-- http://www.kandrsmith.org/RJS/Misc/Hygrometers/calib_many.html
+-- Il est compatible avec le capteur SI7021 mais pas avec la lib SI7021 du NodeMCU Lua :-(
+
+-- source: https://github.com/famzah/nodemcu/tree/master/HTU21D-TLS
+-- source2: https://github.com/tebben/NodeMCU
+-- source3: https://github.com/codywon/NodeMCU-2
+
+scl = 1
+sda = 2
+id = 0
+addr = 0x40
+HUMIDITY = 0xE5
+TEMPERATURE = 0xE3
+SOFTRESET = 0xFE
+
+print(scl, sda, id, addr, HUMIDITY, TEMPERATURE, SOFTRESET)
+
+zspeed = i2c.setup(id, sda, scl, 500000)
+print(zspeed)
+
+i2c.start(id)
+zerr = i2c.address(id, addr, i2c.TRANSMITTER)
+i2c.stop(id)
+
+print("ack: ",zerr)
+
+
+--[[
+
+i2c.write(id, SOFTRESET)
+i2c.stop(id)
+
+tmr.delay(20*1000)
+
+
+i2c.start(id)
+i2c.address(id, addr, i2c.TRANSMITTER)
+i2c.write(id, HUMIDITY)
+i2c.stop(id)
+
+i2c.start(id)
+i2c.address(id, addr, i2c.RECEIVER)
+tmr.delay(50*1000)
+r = i2c.read(id,3)
+i2c.stop(id)
+
+
+print(string.byte(r))
+print(string.byte(r,2))
+print(string.byte(r,3))
+
+]]

Mesures/humidity/bolo/0_get_data.lua

@@ -1,5 +1,5 @@
 -- Lit le capteur I2C HTU21D de mesure d'humidité et de température
-print("\n 0_get_data.lua zf191215.1329 \n")
+print("\n 0_get_data.lua zf191215.1758 \n")
 
 -- https://cdn-shop.adafruit.com/datasheets/1899_HTU21D.pdf
 -- Comparaison DHT22, AM2302, AM2320, AM2321, SHT71, HTU21D, Si7021, BME280
@@ -10,48 +10,45 @@ print("\n 0_get_data.lua zf191215.1329 \n")
 -- source2: https://github.com/tebben/NodeMCU
 -- source3: https://github.com/codywon/NodeMCU-2
 
-scl = 1
-sda = 2
+
 id = 0
+sda = 1
+scl = 2
 addr = 0x40
-HUMIDITY = 0xE5
+HUMIDITY = 0xE3
 TEMPERATURE = 0xE3
 SOFTRESET = 0xFE
 
-print(scl, sda, id, addr, HUMIDITY, TEMPERATURE, SOFTRESET)
-
-zspeed = i2c.setup(id, sda, scl, 500000)
-print(zspeed)
-
-i2c.start(id)
-zerr = i2c.address(id, addr, i2c.TRANSMITTER)
-i2c.stop(id)
-
-print("ack: ",zerr)
-
-
---[[
-
-i2c.write(id, SOFTRESET)
-i2c.stop(id)
-
-tmr.delay(20*1000)
+trig = 4
+gpio.mode(trig, gpio.OUTPUT)
+gpio.write(trig, gpio.HIGH)
 
+i2c.setup(id, sda, scl, i2c.FAST)
 
 i2c.start(id)
 i2c.address(id, addr, i2c.TRANSMITTER)
 i2c.write(id, HUMIDITY)
+--print("ack: ",zerr)
+
+
+i2c.address(id, addr, i2c.RECEIVER)
 i2c.stop(id)
 
+
+tmr.delay(17*1000)
+
+gpio.write(trig, gpio.LOW)
+tmr.delay(1*1000)
+gpio.write(trig, gpio.HIGH)
+
 i2c.start(id)
-i2c.address(id, addr, i2c.RECEIVER)
-tmr.delay(50*1000)
 r = i2c.read(id,3)
 i2c.stop(id)
 
-
 print(string.byte(r))
 print(string.byte(r,2))
 print(string.byte(r,3))
 
-]]
+
+
+

Mesures/humidity/bolo/a.lua

@@ -0,0 +1,3 @@
+trig = 4
+gpio.mode(trig, gpio.OUTPUT)
+gpio.write(trig, gpio.LOW)