I blog about some electronic(Arduino) and coding projects.
Also, content for Smart Home.

Link:
https://juantechblog.github.io/
https://juanstechblog.blogspot.com/ (archive)

Update:

How to install Hugo on Windows 11. 16-March-2024

Integrate SONOFF Zigbee USB Dongle 3.0 Plus-P into Home Assistant. 23-January-2024

Fixing Washing Machine Water Fill Issue. 22-January-2024

Build Human Presence Sensor with ESP8266, LD2410 and ESPHome, Integrate into Home Assistant. 23-December-2023

Hosting Mosquitto MQTT Broker on Docker Compose 15-October-2023

Orange Pi Zero 3: Read this Before You Buy. 22-August-2023

Buy an Orange Pi Zero 3 instead of Raspberry Pi 4. 21-August-2023

Try out to Power the ESP-01S(ESP8266) with Rechargeable NiMH batteries and HT7833 voltage regulator. 26-July-2023

Arduino + ESP8266 + RC522 RFID Module to save RM 100 replacement fee for my RFID access card. 25-May-2023

I Don't Know Why Docker Desktop "--network host" is not working and "/dev/snd" is not found. 15-Mar-2023

Upgrade Old Wall Switch to WiFi Tuya Smart Wall Switch 15-Dec-2022

Try out 28BYJ-48 Stepper Motor with ULN2003 Driver Board Using Arduino and AccelStepper. 17-Sept-2022

Build AirPlay 2 receiver on a Linux computer with Shairport-sync. 7-July-2022

This post has been edited by Jhs: Nov 14 2025, 06:37 PM

Hi, wanna know if you have any coding of Queue Management System (like those numbering ticket use waiting at bank) for Arduino?

Keen to explore. But can't find much info...

AirPlay 2 Speaker is expensive. Why not build it on your own?

I re-use my old laptop to run the AirPlay2 software Shairport-Sync(Open Source Project) and output the audio to my speaker.

You use a Raspberry PI zero 2 to run the software as an alternative.

Link: https://juanstechblog.blogspot.com/2022/07/...rport-sync.html

bookmarked. Thanks, man.

Sorry, I don't have any experience with that.
Maybe you can search it on Github.

Try 28BYJ-48 Stepper Motor with ULN2003 Driver Board using Arduino and AccelStepper.

Also includes examples with constant and acceleration.

https://juanstechblog.blogspot.com/2022/09/...rd-arduino.html

Just upgrade to a smart wall switch.

https://juanstechblog.blogspot.com/2022/12/...all-switch.html

I have issues with Docker Desktop using it with Home Assistant and Shairport-Sync, but not with Docker Engine.
I always thought these two products were the same. Just the Docker Desktop with better UI. However, they are not.

[Blog Post]
https://juanstechblog.blogspot.com/2023/03/...rport-sync.html

Step by step installation guide to install Docker Desktop on Linux Mint.

[Blog Post]
https://juanstechblog.blogspot.com/2023/04/...linux-mint.html

Yeah. I use Arduino, ESP8266, and RC522 Module to build an RFID cloner and save some money.

[Blog Post]
Arduino + ESP8266 + RC522 RFID Module to save RM 100 replacement fee for my RFID access card.



This post has been edited by Jhs: May 25 2023, 11:01 PM

A small project to demonstrate how to power ESP-01S(ESP8266) with battery and HT7833 voltage regulator.

[Blog Post]
https://juanstechblog.blogspot.com/2023/07/...-regulator.html

Orange Pi Zero 3 like the Raspberry Pi Zero 2 W but has 4GB Ram is good value? Orange Pi Zero 3 4GB RAM may be a good alternative for Raspberry Pi 4.

[Blog Post]
https://juanstechblog.blogspot.com/2023/08/...berry-pi-4.html




Attached thumbnail(s)

Orange Pi Zero 3 is good value for money SBC. But here are some drawbacks/cons/disadvantages you may want to know before you buy.

[Blog Post]
https://juanstechblog.blogspot.com/2023/08/...-drawbacks.html




Attached thumbnail(s)

Simple guide for hosting Mosquitto MQTT Broker on Docker Compose.

[Blog Post]
https://juanstechblog.blogspot.com/2023/10/...er-compose.html

This post has been edited by Jhs: Oct 23 2023, 10:37 AM

Build a human presence sensor with ESP8266, LD2410 mmWave radar sensor, and ESPHome, integrate into Home Assistant.

[Blog Post]
https://juanstechblog.blogspot.com/2023/12/...-assistant.html

I just learned how to install Hugo with Go/Golang and Git.

[Blog Post]
https://juantechblog.github.io/posts/ins...ugo-windows-11/

This post has been edited by Jhs: Jul 22 2024, 05:13 PM

Just repaired my washing machine water flow slow or water pressure low issue.

[Blog Post]
https://juantechblog.github.io/posts/fix...ter-fill-issue/

This post has been edited by Jhs: Jul 22 2024, 05:14 PM

I just learned how to mount the Zigbee dongle into Docker container and integrate it into Home Assistant.

[Blog Post]
https://juantechblog.github.io/posts/int...home-assistant/

This post has been edited by Jhs: Jul 22 2024, 05:15 PM

DIY WS2812B Addressable LED Light Strip Controller with ESP32 and WLED.

https://juantechblog.github.io/posts/diy-ws...ler-esp32-wled/


This post has been edited by Jhs: Dec 27 2024, 05:32 PM

Build a Monitor riser/stand with the IKEA wall shelf and furniture legs.

https://juantechblog.github.io/posts/easy-d...or-riser-stand/

CH340 USB-to-Serial Driver 3.8 version issue. It cause the Arduino IDE prompt "A device attached to the system is not functioning" error message.



https://juantechblog.github.io/posts/how-to...iver-3-8-issue/