HELLO
I have 1 0-5 vdc analog sensor (5vdc power supply) that will connect to the analog terminals of my arduino uno.
I would like to add to my project a wifi conexion to send the data to an FTP server or another mode.
What wifi shield I should add (cheaper than the proposed adruino shield: adafruit example ADA 3653)
An ESP8266 module is probably the cheapest option.
...R
The ESP8266 module isn't a shield per se.
Though you can buy a prototype shield and solder the ESP-01 module to it.
The ESP-01 comes by default with AT firmware, so you may want to upload new firmware ( GitHub - bportaluri/WiFiEsp: Arduino WiFi library for ESP8266 modules ) to it to make easier to use with the Arduino.
What kind of sensor are we talking about? What accuracy do you need?
I'd just get a Wemos D1 mini, tack on an SPI ADC, and you're done.
Pieter
PieterP:
What kind of sensor are we talking about? What accuracy do you need?I'd just get a Wemos D1 mini, tack on an SPI ADC, and you're done.
Pieter
the esp8266 analog port on Wemos D1 is good. it can read to 3.3 V.
hamet:
I have 1 0-5 vdc analog sensor (5vdc power supply)
That could be anything, including a ratiometric sensor.
In that case the voltage input of an ESP is a poor choice.
Need to know which sensor is used to give meaningful advice.
Leo..
P.S. This is also cross-posted in the French part of the forum.