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  • XIAO Expansion Board with XIAO ESP32C3
  • Instructions     from DIY Digital Watch Project
  • An XIAO ESP32C3 microcontroller and an XIAO extension board manufactured by Seeed Studio comprised the heart of this project. It comes with rich peripherals that include an OLED, RTC, SD Card Sot, passive buzzer, reset/user button, 5V servo connector,...

  • Design
  • Instructions     from DIY Digital Watch Project
  • Initially, we had the idea of reviving an outdated CASIO vintage watch frame that I had with the XIAO expansion board. The expansion board contains the display, microcontroller, RTC and even the battery, so we prepared a rectangular holder that will...

  • Assembly Process
  • Instructions     from DIY Digital Watch Project
  • The holder part is added from the bottom side of the frame after the top part has been assembled onto the watch frame. Two M2 screws are used to secure everything in place

  • Assembly Process: Final
  • Instructions     from DIY Digital Watch Project
  • Next, we connected the JST connector of the expansion board to the JST connector of the LiPo cell.Next, we insert the battery into the top part and secure the expansion board in its proper position.Next, by using four m2 screws, we secure the expansion...

  • CODE
  • Instructions     from DIY Digital Watch Project
  • Here's the code used in this project.#include PCF8563 pcf; #include #include #include #include #define OLED_WIDTH 128 #define OLED_HEIGHT 64 #define OLED_ADDR 0x3C Adafruit_SSD1306 display(OLED_WIDTH, OLED_HEIGHT); void setup() { display.begin(SSD1306_SWITCHCAPVCC,...

  • RESULT
  • Instructions     from DIY Digital Watch Project
  • Here's the end result of this super-small build: a digital wrist watch. The XIAO expansion board serves as a functional clock module in this useful and functional watch. The inbuilt buzzer can be used as an alarm indicator should we introduce an...

  • Part 1 - The PCB

  • Instructions     from NOOBIX IOT
  • What’s up my friends, welcome back. This below is the PCB that I’ve designed for my project. I’ve tried to make it as small as I could so it could fit inside of a basic wall electric box. This project works at 220V so make sure you stay safe and...

  • Part 2 - What we need
  • Instructions     from NOOBIX IOT
  • Let's see all the needed parts and also check the schematic for this project below in order to know where to connect each part. We need the 220V to 12V regulator, the solid-state relay, an ESP32S smd version, some SMD capacitors and resistors, a diode,...

  • Part 3 - PCB Schemati
  • Instructions     from NOOBIX IOT
  • The schematic is quite easy. The basic configuration of the ESP32 chip with pullups to 3.3V for Enable and RST pins. The converter module give us 12V so we connect that in series with the AMS1117 regulators of 5 and 3.3V. The Relay circuit is simple....

  • Part 4 - Assemble the PCB
  • Instructions     from NOOBIX IOT
  • First I solder the voltage converter module. For that add 4 male pins. And on top of those pins we add the converter and we solder it. I also add the input and the output terminals. Then I carefully connect a 220V AC cable at the input. Be careful, and...

  • Part 5 - Website + Database
  • Instructions     from NOOBIX IOT
  • Please check my previous tutorial about IOT with the ESP32 in order to understand more because I won’t go over those steps again. In the video below you learn how to make the website, the database, the internet connection and so on. Follow...

  • Part 6 - Arduino CODE
  • Instructions     from NOOBIX IOT
  • Now download the Arduino Code from below. Read the instructions in the code line by line. First, you have to change your wifi name and password. Then scroll down and in the http.begin function change the website from "electronoobs.com" to the...

  • Part 7 - Full Tutorial Video
  • Instructions     from NOOBIX IOT
  • Now as you can see in the tutorial video, each time I toggle the button on my website, the LED on the NOOBIX board is also turning on and off. But we can also connect it to high voltage. Connect a 220V load at the output. Then we add a cable at the input...
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