- Fri Sep 10, 2021 4:42 am
#92300
How do I connect a BMP280 sensor to ESP-01 ?
- Tue Sep 14, 2021 8:42 am
#92341
Not tried myself I only used my magic Google skills:
Assumption is the mother of all f*ckups. At least: that's what I'm assuming.
- Tue Sep 14, 2021 12:10 pm
#92345
One thing you have to be careful about that hook up arrangement is the power arrangement.
USB serial adapters come in a number of flavours.
1) 5V. This would pass through the 5V to the ESP8266 which is way over the esp8266 and likely to damage it.
2) Basic 3.3V. These provide 3.3V from the USB serial chip which have limited current capability and are unlikely to satisfactorily power the esp8266
3) 3.3V with separate regulator for external devices. These will probably work fine.
Better is to avoid the ESP-01, which in my view is a nasty device, and use a much more friendly Wemos or NodeMCU which include their own usb serial and a proper 3.3V regulator
USB serial adapters come in a number of flavours.
1) 5V. This would pass through the 5V to the ESP8266 which is way over the esp8266 and likely to damage it.
2) Basic 3.3V. These provide 3.3V from the USB serial chip which have limited current capability and are unlikely to satisfactorily power the esp8266
3) 3.3V with separate regulator for external devices. These will probably work fine.
Better is to avoid the ESP-01, which in my view is a nasty device, and use a much more friendly Wemos or NodeMCU which include their own usb serial and a proper 3.3V regulator
- Fri Sep 24, 2021 3:59 am
#92444
Some converters do supply sufficient power, some don't. From the top of my head: the CP2102 does, the FT232 does not (but it's really simple to add a linear converter yourself).
