From today we will move on the Analog interface part of the nEXT EVO Board AN-1 and we will start talking about the Digital to Analog conversion, Analog Autoscaling input and Analog to Digital conversion . For the Digital to Analog conversion part the choosen one is the Microchip MCP4728 Read more…
This is just a very quick example on how to add a Voltage Divider to the ESP8266 Internal ADC input to increase the ADC input range.For more theory behind, please take a look at the previous related article: ESP8266 – Internal ADC Today project: Measure a voltage input range from Read more…
Autorange Analog frontend For a deeper Hardware description please take a look at the ESP8266 Analog Extension Board What we will need: ESP8266 nEXT EVO Board ESP8266 nEXT EVO – Analog Extension Board – AN1 For programming and uploading the driver and the software we will continue to use Read more…
Because of the very cheap ACS712 Current Sensor Board modules available all over the place, I really think that everybody heard about ACS712 sensor from Allegro MicroSystems. As I was asked if “Can be used as a current sensor module for our ESP8266 Projects without too much hustle?”, I Read more…
———————————- UPDATE ————————————– For a ADC Input Frontend with Auto-range capabilities in the 0-40V Input range take a look also at the new ADC Input related article ——————————— UPADTE —————————————- After testing the ESP8266 Internal ADC I think it’s time to see also a higher resolution ADC at work. For Read more…
——————————— NEW UPADTE —————————————- Added also a new example for a 0-5V input range with Voltage divider and LSB calculation, “the easy way”: ESP8266 internal ADC 2 – the easy way example ———————————- UPDATE ————————————– For a ADC Input Frontend with Auto-range capabilities in the 0-40V Input range take a look Read more…
Now, with a nice and powerful 12 bit DAC working on our ESP8266 CBDB Board ( see Part 1 ) let’s test it to the limit a little bit. As you will see from the Oscilloscope and DMM images below, MCP4726 DAC Output it’s nice, smooth and stable. Not bad Read more…
At least from the zillions of request for a DAC Driver implementation example that I received in the latest weeks, this is the long awaited topic: ESP8266 Modules and Voltage Output Digital-to-Analog Converter control! For our project we will use Microchip MCP4726, a Voltage Output Digital-to-Analog Converter (DAC) Read more…