https://github.com/niklauslee/web-clock

A clock device reading time from web.
https://github.com/niklauslee/web-clock

clock kaluma raspberry-pi-pico web

Last synced: 3 months ago
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A clock device reading time from web.

• Host: GitHub
• URL: https://github.com/niklauslee/web-clock
• Owner: niklauslee
• License: mit
• Created: 2022-04-18T03:19:51.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2022-04-18T03:36:08.000Z (about 4 years ago)
• Last Synced: 2025-03-27T13:38:47.054Z (about 1 year ago)
• Topics: clock, kaluma, raspberry-pi-pico, web
• Language: JavaScript
• Homepage:
• Size: 329 KB
• Stars: 5
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Overview

A clock device reading time from web. It shows current date and time on OLED display. It periodically requests current time and date to a time server. I use World Time API (http://worldtimeapi.org/) as a time server. I cannot guarantee how this is reliable and correct, but it is easy to get current date and time as a JSON format.

![assemble](https://github.com/niklauslee/web-clock/blob/main/images/assemble.jpg?raw=true)

# Components

| Part                            | Quantity | Note                      |

| ------------------------------- | -------- | ------------------------- |

| Raspberry Pi Pico               | 1        |                           |

| 1.3" OLED Display (SSD1306 I2C) | 1        | Purchased from Aliexpress |

| Wi-Fi module (ESP-01 module)    | 1        |                           |

| Breadboard                      | 1        |                           |

# Wiring

| Raspberry Pi Pico | ESP8266    | SSD1306   |

| ----------------- | ---------- | --------- |

| 3V3               | VCC, CH_PD | VCC (VDD) |

| GND               | GND        | GND       |

| GP0 (UART0 TX)    | RXD        |           |

| GP1 (UART0 RX)    | TXD        |           |

| GP4 (I2C0 SDA)    |            | SDA       |

| GP5 (I2C0 SCL)    |            | SCL (SCK) |

![circuit](https://github.com/niklauslee/web-clock/blob/main/images/circuit.png?raw=true)

# Setup

To run this project, you need to store `WIFI_SSID`, `WIFI_PASSWORD` keys in storage via Terminal as below.

```js

> storage.setItem('WIFI_SSID', 'MyHome'); // WiFi SSID

> storage.setItem('WIFI_PASSWORD', '********'); // Wi-Fi Password

```