https://github.com/ljnath/esp32-micropython

Micropython programs running on ESP32 microcontroller
https://github.com/ljnath/esp32-micropython

esp32 esp32-arduino esp32-wifi esp32-wroom led-controller microcontroller micropython micropython-esp32 oled-display oled-display-ssd1306 oled-ssd1306 python ssd1306 ssd1306-oled wifi-network wireless-network

Last synced: 4 days ago
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Micropython programs running on ESP32 microcontroller

• Host: GitHub
• URL: https://github.com/ljnath/esp32-micropython
• Owner: ljnath
• License: mit
• Created: 2022-09-28T20:44:30.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2022-10-03T09:37:22.000Z (about 2 years ago)
• Last Synced: 2023-05-21T07:23:54.152Z (over 1 year ago)
• Topics: esp32, esp32-arduino, esp32-wifi, esp32-wroom, led-controller, microcontroller, micropython, micropython-esp32, oled-display, oled-display-ssd1306, oled-ssd1306, python, ssd1306, ssd1306-oled, wifi-network, wireless-network
• Language: Python
• Homepage:
• Size: 12 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# esp32-micropython

 Micropython programs running on ESP32 microcontroller

### COMPONENTS

* 1 x 38-pins ESP32 microcontroller (flashed with micropython)

* 2 x 7-segment LED display (common cathode)

* 2 x 7-segment LED display (common anode)

### PROGRAMS

* digit.py -  script to displays the current digit in a 7-segment LED (common-cathode) display

* blink_random_digit.py - script to generate random number and display the number in a 7-segment LED (common-cathode) display

* two_digits.py - script to display two digits in 2 7-segment LED (common-cathode) display

* wireless_ssid_count.py - scipt to scan for available wireless SSIDs and display the count in 2 7-segment LED (common-cathode) display

* clock.py - script to display current in 4 7-segment display without any additional circuitary.

            Same GPIO pins are used to display two numbers in seperate LED display.

            This is achieved by using common-anode and common-cathode LED display and cotrolling both programmatically.

            One caveat is that the display flashes in pre-defined interval. This is because we are using same set of GPIO pins for 2 display.To show time on both the display, we are clearing the display and displaying the numbers again and again. This results in the flashing effect.

### CLOCK DEMO

![Demo](clock_demo.gif)

### CLOCK CIRCUIT

![Demo](clock_circuit.png)