2020/12/31

How to use / navigate this blog

This is a quick summary of how to use / navigate this blog.

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2017/11/19

Working with ADS1115

This post is about how to use ADS1115 - a 16-bit, 4-channel ADC with Programmable Gain Amplifier (PGA).


2017/11/18

Adding support for NodeMCU-32S Module to Arduino IDE

This post is about how to add support for ESP32 to Arduino IDE and how to upload a sample Arduino sketch to NodeMCU-32S.

Below is the NodeMCU-32S module used for this post.


2017/11/16

Working with Current Transformer (CT) sensors

This post is about how to interface 5V / 3.3V ADC with CT sensor.

TA1020 (20A) - for 5V and 3.3V ADCs

Below is the calculation for TA1020(20A) with 5V ADC and 3.3V ADC.


2017/10/18

ESP8266 OTA - OTA over internet using HTTP server

This post is about how to perform OTA over the internet. The firmware to be downloaded and install on ESP8266 via OTA is stored on a HTTP server.

The hardware used for this post is NodeMCU v1.0.

2017/10/07

ESP8266 - Getting Chip ID and MAC Address

The code below reads and displays info. such as WiFi MAC Address, Chip ID, Flash Chip ID, Flash Chip Size, etc. about the NodeMCU v1.0 board that I use for making this post.