MicroPython Forum (Archive)

without your source code is hard to figure it out. But I think that you forget to change the I2c address to 0x76 in the library. By default the bmp280 library is set to 0x77. When you create bme280 object you need to select the address 0x76. i2c=machine.I2C(0,sda=machine.Pin(bme_PinSDA), scl=machine...

How can I do this if in the driver file, there appears to be a fixed address and its set only to 0x76?! I didn't understand even though it clearly works as I have it....?! OH! this is a python behavior if you check the driver you got # BME280 default address. BME280_I2CADDR = 0x76 class BME280: def...

B.T.W.


Step 1 . Does my simple script works ?
Step 2. If you follow my solar pico , does it works with a simple bme sensors. If it doesn't what was the problem.

After I took your code, I've attempted to edit it somewhat to account for the fact i have two bme280 sensors,not just one. Ok two bme sensor ???? I tried to figure why two. Are you settings on different pressure box or you are just interrested to humidity and temperature. Two bme sensor hsould be s...

I didn't have any problem with the BME280 sensor but I installed that version https://github.com/SebastianRoll/mpy_bme280_esp8266 I just copy the bme280.py into the pico lib folder. This is an example. I didn't test this exact code but it should work since I extracted it from my working solar garden...

So I'm happy the HiveMQ Broker side of things is working OK. But I can't get a Pico W with MQTT_AS connected to the HiveMQ Broker Maybe print the config just in case something is not ok. What is your source code ? Giving the config won't tell us if your code is OK! Do you have the micropython refer...

Oh this sounds quite complicated. Not at all. Solar Cell -> 5V buck converter. -> TP4056 charger -> lipo -> Pico Vsys. This is a simple setup with a more power full solar cell. N.B. there are two protoboards So we have four different power rails , I called them BUS, on each side. SOLAR.jpg Do you t...

I think you'd have to identify the low power bits of the code to me before I'd have any chance of trying that out with my setup. You could supply Vsys with a voltage bettween 1.8 to 5.5V which is perfect for a lipo battery. When the PicoW transmit via wifi it could have some peak higher than 100ma ...

Hi Rissy, Looks very good. I also made a mqtt device with pico. The big difference is that I'm adding a tiny solar cell with a lipo battery. This mean that I'm using lightsleep often to keep the battery. This is my github https://github.com/danjperron/PicoWSolar Maybe it will give you some more idea...

I just download Peter Hinch micropython-samples. Thanks Peter for your very good samples. Ok I'm just trying to learn how to do deep sleep with the timer ds3231 but the ds3231 library doesn't have the alarm set. Then I added the functions to his library for the alarm 1 and 2. I didn't put it on gith...