Design with Adafruit Metro M4 AirLift Lite in Cirkit DesignerThe Adafruit Metro M4 AirLift Lite is a feature-rich microcontroller board designed for the modern maker, hobbyist, or engineer looking to delve into wireless Internet of Things (IoT) projects. At the heart of the board is the ATSAMD51 microcontroller, an ARM Cortex-M4 processor with floating-point support. The board's standout feature is its integrated Wi-Fi module, the ESP32, which provides Wi-Fi connectivity and enables users to easily connect their projects to the internet.
This circuit is an IoT-based smart lift system designed for blind and disabled individuals. It uses IR sensors, pushbuttons, an LCD screen, a DFPlayer module, and a VC-02 module to detect floor selection via finger presence or voice commands, and announces the selected floor through a speaker while displaying it on the LCD.
Open Project in Cirkit Designer
This circuit is designed for environmental data collection and logging, utilizing an Adafruit Feather M0 Express microcontroller as the central processing unit. It interfaces with a BME280 sensor for atmospheric temperature, humidity, and pressure measurements, an SGP30 sensor for monitoring air quality (eCO2 and TVOC), and a STEMMA soil sensor for detecting soil moisture and temperature. The system is powered by a solar panel and a 3.7v LiPo battery, managed by an Adafruit BQ24074 Solar-DC-USB Lipo Charger, and provides easy access to the microcontroller's connections through an Adafruit Terminal Breakout FeatherWing.
Open Project in Cirkit Designer
This circuit is a sensor-based system that uses an Adafruit Trinket M0 microcontroller to read data from a MiCS-5524 gas sensor and control a Tower Pro SG90 servo motor. Additionally, it includes an Adafruit Audio FX Mini Sound Board connected to a STEMMA speaker for audio output, all powered by a 4xAA battery pack.
Open Project in Cirkit Designer
This circuit features an Mtiny Uno ATmega328P microcontroller as its central processing unit, interfacing with a variety of sensors and peripherals. It includes a 0.96" OLED display and an MPU6050 accelerometer/gyroscope for user interface and motion sensing, respectively. The circuit also integrates a TF LUNA LIDAR for distance measurement, a DHT11 sensor for temperature and humidity readings, and uses a 9V battery with a 7805 voltage regulator for power management. Communication with a computer for programming and data exchange is facilitated by an Adafruit FTDI Friend module.
Open Project in Cirkit Designer| Pin Number | Function | Description |
|---|---|---|
| 1 | VIN | Input voltage to the board |
| 2-13 | Digital I/O | Digital input/output pins |
| 14-19 | Analog Inputs | Analog input pins |
| 20 | DAC | Digital-to-Analog Converter output |
| 21-22 | I2C (SDA, SCL) | I2C data and clock lines |
| 23-25 | SPI (MISO, MOSI, SCK) | SPI communication lines |
| 26 | Reset | Reset pin |
| 27-28 | UART (RX, TX) | UART communication lines |
| 29 | 3V3 | 3.3V power output |
| 30 | GND | Ground |
Q: Can I power the board using a battery?
Q: How do I connect to a secured Wi-Fi network?
Q: What libraries do I need to use the Wi-Fi functionality?
#include <WiFi.h>
#include <SPI.h>
const char* ssid = "yourSSID"; // Replace with your Wi-Fi network name
const char* password = "yourPASSWORD"; // Replace with your Wi-Fi password
void setup() {
Serial.begin(115200);
// Attempt to connect to Wi-Fi network:
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("Wi-Fi connected.");
}
void loop() {
// Put your main code here, to run repeatedly:
}
Remember to replace yourSSID and yourPASSWORD with your actual Wi-Fi credentials. This example demonstrates how to connect the Adafruit Metro M4 AirLift Lite to a Wi-Fi network. The serial monitor will display the connection status.