Design with Nano 33 BLE with pinout in Cirkit DesignerThe Arduino Nano 33 BLE is a compact and feature-rich development board based on the Nordic nRF52840 microcontroller. It is designed for projects that require Bluetooth connectivity and low-power features. The board is ideal for wearable devices, smart home applications, and IoT projects due to its small form factor and powerful processor, which includes an ARM Cortex-M4 CPU with floating-point unit (FPU).
This circuit consists of an Arduino Nano 33 BLE microcontroller connected to an infrared (IR) sensor. The IR sensor's output pin is connected to the D7 digital input pin on the Nano, allowing the microcontroller to read the sensor's signal. The sensor is powered by the 3.3V output from the Nano, and both the sensor and the Nano share a common ground connection.
Open Project in Cirkit Designer
This circuit features a Nano 33 BLE microcontroller interfaced with a TM1637 4-digit 7-segment display for information output, powered by a 3.7V battery managed by a TP4056 charging module. The microcontroller communicates with the display to present data, while the TP4056 ensures the battery is charged safely and provides power to the system.
Open Project in Cirkit Designer
This circuit features an Arduino Nano interfaced with a BNO055 sensor and an HC-05 Bluetooth module. The Arduino communicates with the BNO055 via I2C (using A4 for SDA and A5 for SCL) and with the HC-05 via serial communication (using D0/RX and D1/TX for data transfer). The HC-05's Key and State pins are connected to D2 and D3 of the Arduino for module control, and all components share a common ground with the Arduino powered at 5V and the BNO055 at 3.3V from the Arduino's 3V3 output.
Open Project in Cirkit Designer
This circuit features a Nano 33 BLE microcontroller interfaced with an MPU6050 accelerometer/gyroscope, a MAX30102 heart rate and oxygen sensor, and a MAX30205 temperature sensor via I2C. It also includes four LEDs (red, blue, yellow, and green) controlled by the microcontroller, with power supplied by a 9V battery through a voltage regulator.
Open Project in Cirkit Designer| Pin Number | Function | Description |
|---|---|---|
| D0-D13 | Digital I/O | Digital input/output, PWM output on most pins |
| A0-A7 | Analog Input | Analog input pins, 12-bit ADC resolution |
| 5V | Voltage Output | Regulated 5V output (derived from VIN) |
| 3.3V | Voltage Output | Regulated 3.3V output, 50 mA max |
| GND | Ground | Ground pins |
| VIN | Voltage Input | Unregulated input voltage to power the board |
| RST | Reset | Active low reset input |
| TX0, RX0 | Serial | UART communication |
| SDA, SCL | I2C | I2C communication pins |
| MISO, MOSI, SCK | SPI | SPI communication pins |
To use the Nano 33 BLE in a circuit:
Here is a simple example code that blinks the onboard LED connected to pin D13. This code can be used to test the board's functionality.
// Pin 13 has an LED connected on most Arduino boards.
int ledPin = 13;
// The setup routine runs once when you press reset:
void setup() {
// Initialize the digital pin as an output.
pinMode(ledPin, OUTPUT);
}
// The loop routine runs over and over again forever:
void loop() {
digitalWrite(ledPin, HIGH); // Turn the LED on (HIGH is the voltage level)
delay(1000); // Wait for a second
digitalWrite(ledPin, LOW); // Turn the LED off by making the voltage LOW
delay(1000); // Wait for a second
}
Q: Can I power the Nano 33 BLE with 5V? A: It is recommended to power the board with a voltage between 4.5V and 21V on the VIN pin. The board can also be powered via the USB connection.
Q: Is the Nano 33 BLE compatible with all Arduino libraries? A: Most libraries that do not depend on AVR-specific hardware should work. Libraries that are designed for specific hardware may need modifications.
Q: How do I reset the board? A: You can reset the board by briefly connecting the RST pin to GND or by pressing the onboard reset button.
Remember to always consult the official Arduino Nano 33 BLE documentation for the most up-to-date and detailed information.