| 1 |
Auto Night Light |
ESP32 + LDR |
Automatic LED turns ON/OFF based on ambient light |
| 2 |
Dimmer LED using Potentiometer |
ESP32 + Potentiometer |
LED brightness controlled via potentiometer using ADC + PWM |
| 3 |
DHT11 Temperature & Humidity Web Server |
ESP32 + DHT11 |
Reads temperature & humidity and displays on a live web page |
| 4 |
1-Digit Seven Segment Display |
Raspberry Pi Pico + 7-Segment |
Displays numeric output using GPIO control |
| 5 |
Mini Weather Station (DHT11 + LCD) |
ESP8266 + DHT11 + I²C LCD |
Displays real-time temperature & humidity on 16x2 LCD without flickering |
| 6 |
RGB Color Mixer using Potentiometers |
ESP32 + 3 Potentiometers + RGB LED |
Mix RGB colors by adjusting potentiometers using ADC and PWM |
| 7 |
Potentiometer Bar Graph Display |
ESP32 + Potentiometer + 10 LEDs |
Visualize analog input as a 10-LED bar graph using ADC mapping |
| 8 |
MQ4 Gas Leak Detection System |
ESP32 + MQ4 Sensor + Buzzer |
Detects methane gas concentration using MQ4 sensor and triggers alert when gas level exceeds threshold |
| 9 |
Basic RTC Clock (Serial Monitor Display) |
ESP8266 + DS3231 RTC |
Displays real-time date, time, and temperature on Serial Monitor using DS3231 RTC |
| 10 |
IoT Button Counter using ESP8266 & MicroPython |
ESP8266 + 3 Push Buttons |
Counts button presses (Increment, Decrement, Reset) and displays live counter on webpage |
| 11 |
MicroPython-Based 8×8 LED Matrix Animation Display using ESP8266 |
ESP8266 + MAX7219 8×8 LED Matrix |
Displays custom animations (heart beat) on 8×8 LED matrix using MicroPython |
| 12 |
PIR Motion Detector using Raspberry Pi Pico 2W & MicroPython |
Raspberry Pi Pico 2W + PIR Sensor |
Detects motion using PIR sensor and indicates using built-in LED with MicroPython |
| 13 |
Bluetooth-Based Wireless LED Control System |
Raspberry Pi Pico 2W + HC-05 |
Wireless LED ON/OFF control using MicroPython + HC-05 Bluetooth module |
| 14 |
Pico W Web Servo Controller |
Raspberry Pi Pico 2W + Servo Motor |
Control servo angle (0–180°) from browser via WiFi |
| 15 |
ClimaPixel — Mini Weather Display |
ESP32/ESP8266 + DHT11 + SSD1306 OLED |
Real-time temperature & humidity display with icons on OLED using MicroPython |
| 16 |
TM1637 Button-Press Counter using ESP8266 & MicroPython |
ESP8266 + TM1637 + Push Button |
Counts button presses and displays live counter on TM1637 4-digit display |
| 17 |
IoT Relay Control Web Server (Raspberry Pi Pico 2W) |
Raspberry Pi Pico 2W + Relay Module |
Web-based relay control using MicroPython with a smooth slide switch UI and real-time ON/OFF status over WiFi |
| 18 |
Blynk-Based IoT Relay Control (Raspberry Pi Pico 2 W) |
Raspberry Pi Pico 2 W + Relay Module |
Mobile app–based relay control using Blynk IoT and MicroPython with real-time ON/OFF control over Wi-Fi |
| 19 |
NTP Digital Clock using TM1637 & ESP8266 (MicroPython) |
ESP8266 + TM1637 |
Internet-synchronized digital clock using NTP with accurate HH:MM display, blinking colon, and custom segment mapping in MicroPython |
| 20 |
Smart IR Object Detection System |
ESP8266 + IR Sensor + LED + Buzzer |
Detects the presence of an object using an IR sensor and triggers LED and buzzer alerts in real time using MicroPython |
| 21 |
ESP32 Password Lock System |
ESP32 + Keypad + LCD + LEDs |
Implements a secure password authentication system using a keypad and LCD with visual LED feedback, developed in MicroPython |
| 22 |
Blynk Controlled DC Brushless Fan |
Raspberry Pi Pico W + Relay + DC Brushless Fan |
Controls a DC brushless fan remotely using the Blynk IoT platform and a relay module, implemented in MicroPython |
| 23 |
ESP32 Hotspot Setup |
ESP32 |
Configures ESP32 in Access Point (Hotspot) mode using MicroPython, enabling direct device-to-device connectivity without internet |
| 24 |
Voice-Controlled LED System |
Arduino + Python |
Controls an LED using voice commands processed in Python and sent to Arduino via serial communication |
| 25 |
Arduino RGB LED Control with Python GUI |
Arduino + Python |
Controls an RGB LED using a Python GUI built with CustomTkinter and PyFirmata2, allowing color selection, individual LED on/off control, and brightness adjustment via sliders |
| 26 |
Clap Toggle Switch using ESP32 (MicroPython) |
ESP32 + MicroPython |
A clap-controlled toggle switch using a digital sound sensor where one clap turns the output ON and the next clap turns it OFF, implemented with debounce logic for reliable operation |
| 27 |
IR Sensor Telegram Alert using ESP32 (MicroPython) |
ESP32 + MicroPython |
An IR sensor–based object detection system that sends real-time alert notifications to a Telegram channel whenever motion or object presence is detected near the sensor |
| 28 |
Soil Moisture Sensor Dry/Wet Detection using ESP8266 (MicroPython) |
ESP8266 + MicroPython |
A soil moisture monitoring system that reads analog sensor values and determines dry or wet soil conditions in real time, displaying the status on the serial monitor |
| 29 |
Rain Sensor Analog Detection using ESP8266 (MicroPython) |
ESP8266 + MicroPython |
An analog rain detection system that reads real-time sensor values to determine rain intensity (no rain, light rain, heavy rain) and displays the status on the serial monitor |
| 30 |
Ultrasonic Distance Indicator using ESP32 (MicroPython) |
ESP32 + MicroPython |
A distance-based indication system using an HC-SR04 ultrasonic sensor that measures real-time distance and indicates object proximity using red and green LEDs |
| 31 |
WebSocket LED Control using Raspberry Pi Pico W |
Pico W + MicroPython |
A real-time LED control system using WebSockets where a browser communicates directly with Raspberry Pi Pico W over WiFi to turn an LED ON or OFF without page refresh |
| 32 |
MQ-135 Gas Sensor with ESP32 |
ESP32 + MicroPython |
A gas level monitoring system using the MQ-135 sensor and ESP32 to read and average analog sensor values for stable environmental gas detection |
| 33 |
MQ-7 Carbon Monoxide Sensor with ESP32 |
ESP32 + MicroPython |
A carbon monoxide monitoring system using the MQ-7 sensor and ESP32 to read and average analog sensor values for real-time CO detection |
| 34 |
Servo Motor Control with Raspberry Pi Pico 2 W |
Raspberry Pi Pico 2 W + MicroPython |
A simulation-based servo motor control project using PWM, where the user inputs an angle (0–180°) via serial monitor and the servo rotates accordingly with safe angle clamping |
| 35 |
ESP8266 Touch Sensor LED Control |
ESP8266 (NodeMCU) + MicroPython |
A capacitive touch-based toggle switch using the TTP223 touch sensor, where each touch alternates the state of an external LED with proper debounce handling |
| 36 |
ESP8266 DHT11 Live Monitor Matplotlib and MicroPython |
ESP8266 + MicroPython + Matplotlib |
Real-time DHT11 temperature and humidity visualization with a dark neon-themed live graph using serial communication |
| 37 |
XIAO ESP32 4-LED Control using CustomTkinter and MicroPython |
XIAO ESP32-S3 + MicroPython + CustomTkinter |
Desktop GUI application to control four ESP32 GPIO LEDs via serial communication using a modern dark-mode CustomTkinter interface |
| 38 |
ESP32 OLED Smart UI with Eyes Animation, Time & Weather (MicroPython) |
ESP32 + SSD1306 OLED + MicroPython |
Interactive OLED UI featuring animated eyes, touch-based menu navigation, NTP-synced IST date & time, and live weather data using OpenWeatherMap API |
| 39 |
ESP32 Stepper Motor Control using A4988 (MicroPython) |
ESP32 + A4988 + NEMA 17 |
Stepper motor control using STEP/DIR signals with direction control, speed adjustment via delay, and serial monitoring using print statements |
| 40 |
Pico W Async LED Control (MicroPython) |
Raspberry Pi Pico W |
Async web server using uasyncio to control onboard LED via browser with ON/OFF buttons and fetch-based requests |
| 41 |
EEPROM Simulation using MicroPython (ESP32) |
ESP32 |
File-based EEPROM emulation using MicroPython with byte-level read/write and persistent string storage |
| 42 |
ESP32 DC Motor Web Speed Control (MicroPython) |
ESP32 + L298N |
Web-based slider controlled DC motor speed system using PWM, MicroPython web server, and L298N driver |
| 43 |
Temperature Based LED Indicator (MicroPython) |
ESP32 + DHT22 |
Beginner-friendly ESP32 project that reads temperature data from DHT22 and visually indicates temperature levels using LEDs |
| 44 |
Flask LED Control using MicroPython |
ESP32 / Pico W |
Beginner-friendly IoT project where a Flask web server controls an LED on ESP32 or Pico W through HTTP polling using MicroPython |
| 45 |
Smart Cooling System using ESP8266 |
ESP8266+DHT11+BRUSHLESS FAN |
Beginner-friendly IoT project that automatically controls a fan using DHT11 temperature sensor and an active-LOW relay with MicroPython |
| 46 |
Soil & Weather Monitoring using ESP8266 and ThingSpeak |
ESP8266 + DHT11 + Soil Sensor |
Beginner-friendly IoT project that monitors soil moisture, temperature, and humidity and visualizes the data on the ThingSpeak cloud using MicroPython |
| 47 |
Smart Irrigation System using XIAO ESP32-S3 and Blynk |
XIAO ESP32-S3 + Soil Sensor + Relay + Pump |
A smart irrigation system that monitors soil moisture in real time and allows manual water pump control via the Blynk IoT platform using MicroPython |
| 48 |
HTTP-Based DHT11 Data Logger using Raspberry Pi Pico W |
Raspberry Pi Pico 2W + DHT11 |
A simple IoT data logging system that reads temperature and humidity from a DHT11 sensor and sends the data via HTTP POST to a Flask server, where it is stored in a CSV file for analysis |
| 49 |
ThingsBoard RPC LED Control & DHT11 Telemetry using Raspberry Pi Pico 2 W |
Raspberry Pi Pico 2 W + DHT11 |
A cloud-connected IoT system using MicroPython where a Raspberry Pi Pico 2 W sends temperature and humidity data to ThingsBoard via MQTT and allows remote LED control using RPC from a dashboard |
| 50 |
ESP32 BMP180 Atmospheric Monitoring with Blynk IoT |
ESP32 + BMP180 |
A cloud-connected IoT system using MicroPython where an ESP32 measures temperature, atmospheric pressure, and altitude using the BMP180 sensor and sends real-time data to the Blynk IoT dashboard via Wi-Fi |
| 51 |
ESP8266 Smart Home Automation using MicroPython & Blynk |
ESP8266 + DHT11 + Relay |
A cloud-based smart home automation system where an ESP8266 controls home appliances via relay and monitors temperature & humidity using DHT11, with real-time control and monitoring through the Blynk IoT dashboard over Wi-Fi |
| 52 |
IoT Sensor Anomaly Detection using ESP8266 & ThingSpeak |
ESP8266 + DHT11 + LDR + MATLAB |
An IoT-based environmental monitoring system that uploads real-time sensor data to ThingSpeak and performs statistical anomaly detection using Z-score analysis in MATLAB, with visualization and outlier classification |
| 53 |
Smart IoT Gas Monitoring System |
ESP32 + MQ Gas Sensor + DHT11 + Flask + Chart.js |
An AI-inspired end-to-end IoT gas monitoring system that streams real-time sensor data to a Flask backend, applies moving-average based anomaly detection for SAFE/DANGER classification, logs data for analytics, and visualizes live environmental insights on an interactive web dashboard |
| 54 |
ESP8266 ESP-NOW LED Control |
ESP8266 + ESP-NOW + MicroPython |
A low-latency wireless LED control system using ESP-NOW protocol, where one ESP8266 acts as a transmitter and the other as a receiver, enabling real-time device control without WiFi infrastructure |
| 55 |
ESP8266 ESP-NOW Button to LED Control |
ESP8266 + ESP-NOW + MicroPython |
A low-latency peer-to-peer wireless communication system where a push button on one ESP8266 toggles an LED on another ESP8266 without WiFi or access point |
| 56 |
ESP8266 ESP-NOW 4-Channel Wireless Relay Controller |
ESP8266 + ESP-NOW + MicroPython |
A wireless 4-channel relay control system using two ESP8266 boards, where push buttons on the sender toggle relays on the receiver via low-latency ESP-NOW communication without WiFi |
| 57 |
ESP-NOW Smart Relay & Sensor System |
ESP8266/ESP32 + ESP-NOW + MicroPython |
A bidirectional ESP-NOW based smart relay and sensor system where a sender control panel toggles relays on a receiver and receives real-time DHT temperature and humidity data displayed on an OLED |
| 58 |
NTP Synchronized LED Matrix Clock |
ESP32 + MAX7219 + MicroPython + NTP |
A real-time internet-synchronized digital clock using chained MAX7219 LED matrices, showing HH:MM with NTP time sync and serial debugging output |
| 59 |
AQI-ESP - IoT AQI Monitoring System |
ESP32 + MicroPython + Flask + MQ135 + MQ7 + PM2.5 |
A real-time air quality monitoring system using ESP32 and multiple gas sensors, calculating AQI via Flask backend and displaying live results on SSD1306 OLED with status like Good/Moderate/Unhealthy/Hazardous |
| 60 |
Student Management System - ESP32 |
ESP32 + MicroPython + SH1106 OLED + LittleFS + ujson |
A serial command-based student record management system running on ESP32, storing up to 1000 student records in JSON format on onboard flash memory with live navigation and display on SH1106 OLED |
| 61 |
OTA Update - Raspberry Pi Pico 2 W |
Raspberry Pi Pico 2 W + MicroPython + GitHub + urequests |
A WiFi-based OTA (Over-the-Air) update system that automatically downloads and applies new code from GitHub on every boot without physically connecting the device to a computer |
| 62 |
Smart Indoor Security System |
ESP32 + PIR Sensor + 4x4 Keypad + MicroPython + Favoriot IoT |
A motion-triggered keypad security system that detects intruders, requests a password, logs all events to the Favoriot IoT cloud, and sends email alerts on unauthorized access |
| 63 |
ESP32 BLE LED Control |
ESP32 + MicroPython + Bluetooth Low Energy (BLE) |
A BLE UART-based LED control system that allows wireless toggling of the onboard LED via smartphone commands, with connection status indication and real-time state feedback |
| 64 |
microclawup — AI Powered ESP32 GPIO Controller |
ESP32 + Groq AI + Telegram |
AI-powered natural language GPIO controller using MicroPython, Groq AI and Telegram bot |
| 65 |
MicroPython Watch |
Xiao ESP32-S3 + SSD1306 OLED + OpenWeatherMap |
NTP time sync + live weather on a 0.96" OLED display |
| 66 |
micropidash — IoT Web Dashboard |
Raspberry Pi Pico 2W / ESP32 |
Non-blocking web dashboard with real-time sync, dark mode & sensor monitoring via uasyncio |
| 67 |
Pulse Monitor — Heart Rate on OLED |
ESP32 +Pulse Sensor+ OLED |
Real-time BPM display with scrolling waveform & pixel-art heart on SSD1306 OLED via ADC peak detection |
| 68 |
Joystick Servo Control |
Raspberry Pi Pico 2W + SG90 Servo + Joystick Module |
Smooth 0°–180° servo control via joystick X axis using PWM & 5-sample ADC averaging in MicroPython |
| 69 |
Joystick Direction Display |
Raspberry Pi Pico 2 + KY-023 Joystick + SSD1306 OLED |
Real-time joystick direction detection displayed on OLED with raw ADC values using I2C and MicroPython |
| 70 |
Dual IR Entry/Exit Detector with Telegram |
ESP32 + HW-201 IR Sensor x2 + Red LED + Green LED |
Dual IR sensor-based entry/exit detection system — red LED stays ON while object is inside, green LED blinks on exit, with real-time Telegram alerts |
| 71 |
Wi-Fi Controlled 4WD Robot Car |
ESP32 + L298N Motor Driver x2 + TT DC Motor x4 + 4WD Chassis |
Wi-Fi controlled 4WD robot car — ESP32 hosts a web server, browser-based interface with Forward, Backward, Left, Right, Stop controls over local Wi-Fi |
| 72 |
RFID Basic Access Control System |
ESP8266 NodeMCU + MFRC522 + Green LED + Red LED |
RFID based access control — ESP8266 reads MIFARE card UID over SPI, checks against authorised list, green LED for granted and red LED blinks for denied |
| 73 |
RFID Attendance Logger |
ESP32 + MFRC522 + Google Sheets |
RFID based attendance system — scans student cards, logs name, IN/OUT status and NTP timestamp to Google Sheets via Apps Script webhook |
| 74 |
RFID Relay Control System |
Raspberry Pi Pico 2 + MFRC522 + 1 Channel Relay + 5V Brushless Fan |
RFID based relay control — authorized card tap toggles 5V brushless fan ON or OFF via active low relay module |
| 75 |
ESP-NOW RFID Display |
ESP8266 x2 + MFRC522 + SSD1306 OLED |
ESP-NOW based RFID system — one ESP8266 scans card and sends UID wirelessly, second ESP8266 receives and displays UID on OLED |
| 76 |
Bidirectional_ESP_NOW Communication_with_Dual_Sensor_Nodes |
ESP8266 x2 + DHT11 x2 + SSD1306 + SH1106 |
Two ESP8266 nodes simultaneously send and receive DHT11 sensor data over ESP-NOW, each displaying local and remote readings on OLED |
| 77 |
Battery_Monitor_with_Blynk_IoT |
ESP8266 + TP4056 + 18650 + 2x10kΩ |
Real-time Li-ion battery voltage and percentage monitoring using voltage divider, lookup table calibration, pushed live to Blynk IoT dashboard |
| 78 |
IoT-Based DSM Smart Metering Prototype |
ESP32 + ZMPT101B + ACS712 + Blynk IoT + MATLAB |
Real-time AC voltage and current monitoring with power calculation, demand-side management relay control, and live energy dashboard on Blynk IoT with MATLAB-based data analysis |
| 79 |
GC9A01 Round Display Smartwatch |
ESP32 + Xiao ESP32-S3 + GC9A01 + OpenWeatherMap + NTP |
Robot eyes boot animation with blink effect, typing animation, NTP-synced real-time clock, live weather via OpenWeatherMap API, and flicker-free display rendering on 1.28" round TFT |
| 80 |
NeoPixel 8-Ring Web Controller |
Pico 2W + WS2812B NeoPixel + MicroPython |
Browser-based IoT controller with rainbow cycle, breathe effect, solid color, real-time brightness and color control via non-blocking HTTP server on Pico 2W |
| 81 |
Finger Gesture LED Control |
Xiao ESP32-S3 + 5 LEDs + OpenCV + MicroPython |
Real-time finger count detection via webcam controls 5 LEDs over USB Serial — 0 to 5 fingers = 0 to 5 LEDs ON |
| 82 |
Flame Sensor Servo Alert |
ESP32 + Flame Sensor (AO) + SG90 Servo + MicroPython |
Analog flame detection via ADC triggers servo sweep from 0° to 180° as alert — resets when flame is gone |
| 83 |
Adafruit IO MQTT LED Control |
Pico 2W + MicroPython + Adafruit IO MQTT |
Subscribes to Adafruit IO led-control feed over MQTT — sends ON/OFF commands from dashboard to toggle onboard LED in real time |
| 84 |
PicoDesk |
Pico 2W + MicroPython + SSD1306 + OpenWeatherMap |
Dual OLED desktop companion station live clock, NTP time sync, weather, animated eyes, heart rain & mobile todo list via built-in web server |
| 85 |
Virtual LED Control via Node-RED Dashboard & MQTT |
Pico 2W + MicroPython + Node-RED + Mosquitto + Docker |
Virtual LED control via Node-RED dashboard & MQTT — onboard LED toggle with virtual ON/OFF button over MQTT broker |
| 86 |
Joystick MQTT Controller with Node-RED Dashboard |
Pico 2W + MicroPython + Node-RED + Mosquitto + Docker |
Analog joystick X/Y and button state published as JSON over MQTT — decomposed and visualized on Node-RED dashboard widgets |
| 87 |
Relay Control via Node-RED & MQTT |
Pico 2W + MicroPython + Node-RED + Mosquitto |
Relay module on GP15 controlled remotely via MQTT toggled using a Node-RED dashboard switch |
| 88 |
NeoPixel Control via Node-RED & MQTT |
Pico 2W + MicroPython + Node-RED + Mosquitto |
WS2812 NeoPixel ring on GP0 controlled remotely via MQTT with RGB color and blink delay set from Node-RED dashboard sliders |
| 89 |
MQTT DateTime Display on LCD |
Pico W + MicroPython + MQTT + Mosquitto |
16x2 I2C LCD on GP14/GP15 displays real-time date and time by subscribing to an MQTT broker topic with JSON payloads |
| 90 |
MQTT Servo Controller |
Pico W + MicroPython + MQTT + Mosquitto |
Servo motor on GPIO 18 controlled remotely by subscribing to an MQTT broker topic, moves to angles 0–180 via PWM |
| 91 |
DHT11 MQTT Node-RED Dashboard |
Pico W + MicroPython + MQTT + Mosquitto + Node-RED + Docker + Oracle Cloud |
DHT11 sensor on GPIO 18 publishes temperature and humidity to MQTT broker every 5 seconds, visualized as live gauges on a Node-RED dashboard running in Docker on Oracle Cloud VM |
| 92 |
Smart Home Automation ESP32 + DHT22 + 4 Relay + Adafruit IO |
ESP32 + MicroPython + DHT22 + 4 Relay + Adafruit IO + MQTT + Wokwi |
DHT22 sensor on GPIO 4 publishes temperature and humidity to Adafruit IO every 20 seconds, controls 4 relays (Fan, Humidifier, Light, Spare) via MQTT dashboard toggles simulated on Wokwi |
| 93 |
NTP Synchronized Clock — ESP32 + I2C LCD |
ESP32 + MicroPython + NTP + I2C LCD + Wokwi |
Syncs real-time clock via WiFi NTP and displays it on a 16x2 I2C LCD — Row 1: HH:MM:SS Day, Row 2: DD/MM/YYYY, with IST timezone offset included |
| 94 |
GPS Clock & Location Display — Pico W + NEO-6M + OLED |
Raspberry Pi Pico W + MicroPython + NEO-6M GPS + SSD1306 OLED + I2C |
Parses NMEA sentences (GPRMC/GPGGA) to display satellite-synced IST time, live latitude/longitude, speed, satellite count, and altitude on OLED — no WiFi/internet required |
| 95 |
PicoSense Dashboard Pico 2W + DHT11 + Streamlit |
Raspberry Pi Pico 2W + MicroPython + DHT11 + MQTT (Mosquitto) + Streamlit |
Publishes live temperature/humidity over MQTT and subscribes to LED control commands; Streamlit dashboard displays real-time readings with line chart and ON/OFF buttons to control two LEDs remotely |
| 96 |
ESP32 Joke Fetcher |
ESP32 + MicroPython + JokeAPI (HTTP/REST) |
Connects to WiFi and polls JokeAPI’s Programming category over HTTPS at a fixed interval, parsing the JSON response and printing a new joke to the serial console every cycle |
| 97 |
PIR Parking System |
ESP32 + MicroPython + PIR Sensor + SSD1306 OLED |
Tracks 2 parking slots using PIR sensors with a toggle approach, displaying live occupancy and total free spaces on an SSD1306 OLED screen |
| 98 |
Cloud NeoPixel Control |
AWS EC2 + Mosquitto + Node-RED + ESP32 + MicroPython + NeoPixel |
Control a NeoPixel strip remotely via a Node-RED color picker dashboard over MQTT hosted on AWS EC2 |
| 99 |
Smart Irrigation System |
AWS EC2 + Mosquitto + Node-RED + ESP32 + MicroPython + DHT22 + Potentiometer |
Monitor soil moisture, temperature, and humidity in real time with manual pump control via a Node-RED dashboard over MQTT on AWS EC2 |
| 100 |
ESP-NOW Wireless LED Control with ShrikeFi |
ESP32 DevKit + ShrikeFi (ESP32-S3 + ForgeFPGA) + MicroPython + ESP-NOW + SSD1306 |
Toggle LEDs wirelessly on a Vicharak ShrikeFi board using ESP-NOW button presses with real-time status on an OLED display |
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