2020/12/31

How to use / navigate this blog

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

Auto Translation by Google Translate

Use the Select Language widget to translate this blog into the language of you choosing (the translation quality may not be good, but I think it's enough to give you some general idea about the post).













2017/06/26

Working with HC-SR04 Ultrasonic Sensor

This is a brief summary of how to use HC-SR04 ultrasonic sensor.

Schematic


RJ-11 as physical I/O interface

For board with multiple I/O ports and each port has multiple wires, I find it quite convenient to use RJ-11 as the physical I/O interface because it could be plugged / unplugged very quickly and it supports up to 6 wires in one port.


2017/06/22

ESP8266 SPIFFS

This is a summary of my experience testing out the SPIFFS feature for ESP8266.

Below is the source of the Arduino sketch used.
https://github.com/G6EJD/SPIFFS-Examples/blob/master/ESP8266_SPIFFS_Example.ino

ESP8266 - Developing Program Using ESP8266 SDK

This is a brief summary of my experience with setting up the ESP8266 SDK environment and using the ESP Open SDK.

OS: Windows 8.1

2017/06/15

ESP8266 - WiFi Manager

This is a brief summary of my experience working with WiFi Manager developed by tzapu for ESP8266. A big thank you to tzapu for this amazing work. The original version of the code can be found at https://github.com/tzapu/WiFiManager/blob/master/examples/AutoConnect/AutoConnect.ino

The instruction for getting WiFiManager ready for Arduino IDE can be found at https://github.com/tzapu/WiFiManager.

2017/06/12

ESP-12F Programming Jig and Breadboard Adapter

I recently developed a programming jig and breadboard adapter for ESP-12F.

The Programming Jig

The programming jig (center right) and CP2102 (center left).