How to connect Esp-01 to a BMP280 sensor
Posted: Fri Sep 10, 2021 4:42 amHow do I connect a BMP280 sensor to ESP-01 ?
ESP8266 Community Forum
Open Community Forum for ESP8266, Come share Arduino and IoT (Internet of Things)
https://www.esp8266.com/
How to connect Esp-01 to a BMP280 sensor
Page 1 of 1
Posted: Fri Sep 10, 2021 4:42 amRe: How to connect Esp-01 to a BMP280 sensor
Posted: Tue Sep 14, 2021 8:42 amRe: How to connect Esp-01 to a BMP280 sensor
Posted: Tue Sep 14, 2021 12:10 pmOne 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
Re: How to connect Esp-01 to a BMP280 sensor
Posted: Fri Sep 24, 2021 3:59 amSome 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).