Design with Adafruit TLV493D in Cirkit DesignerThe Adafruit TLV493D is a compact 3-axis magnetic sensor module capable of sensing magnetic fields in three dimensions. It is based on the TLV493D-A1B6 magnetic sensor chip from Infineon Technologies, which offers high precision and low power consumption. This module is ideal for applications such as position tracking, compassing, and gesture detection. It communicates with microcontrollers like the Arduino UNO via the I2C interface, making it a versatile component for hobbyists and professionals alike.
This circuit features an Adafruit QT Py RP2040 microcontroller interfaced with an APDS9960 proximity sensor, an MPU6050 accelerometer and gyroscope, and an OLED display via I2C communication. It also includes a buzzer controlled by the microcontroller and is powered by a 3.7V LiPo battery with a toggle switch for power control.
Open Project in Cirkit Designer
This circuit is a battery-powered system featuring an Arduino UNO that controls an Adafruit NeoPixel Stick and interfaces with an ADXL345 accelerometer and an ILI9341 TFT display. The TP4056 module charges a 18650 battery, which powers the system through a DC-DC converter. The Arduino code drives the NeoPixel Stick to display a red light sequence.
Open Project in Cirkit Designer
This circuit features two Arduino Nanos controlling a variety of components. One Arduino interfaces with a 12-bit PWM servo driver to manage multiple servos, an OLED display, a stepper motor via an A4988 driver, and communicates using an NRF24L01 wireless module. The other Arduino handles inputs from several TTP233 touch sensors and also communicates wirelessly using its own NRF24L01 module. Power management is handled by a 12V battery, a step-down converter to 5V, and rocker switches to control power flow.
Open Project in Cirkit Designer
This circuit is a battery-powered system featuring an ESP32 microcontroller that controls an OLED display, a motor driver for two hobby motors, an ultrasonic sensor for distance measurement, and a DFPlayer Mini for audio output through a loudspeaker. The TP4056 module manages battery charging, and a step-up boost converter provides a stable 5V supply to the components.
Open Project in Cirkit Designer| Pin Number | Name | Description |
|---|---|---|
| 1 | VDD | Power supply (2.7V to 3.6V) |
| 2 | GND | Ground connection |
| 3 | SDA | I2C Data line |
| 4 | SCL | I2C Clock line |
| 5 | ADDR | I2C Address selection (connect to GND or VDD) |
| 6 | SDAI | Interrupt (not used in default operation) |
#include <Wire.h>
#include <Adafruit_TLV493D.h>
// Create sensor instance
Adafruit_TLV493D tlv = Adafruit_TLV493D();
void setup() {
Serial.begin(9600);
// Wait for serial monitor to open
while (!Serial) { delay(10); }
// Initialize the sensor
if (!tlv.begin()) {
Serial.println("Failed to find TLV493D sensor");
while (1) { delay(10); }
}
Serial.println("TLV493D sensor found!");
}
void loop() {
tlv.read(); // Read the sensor
// Print out the X, Y, and Z axis values
Serial.print("X: "); Serial.print(tlv.x, 4); Serial.print(" mT");
Serial.print("\tY: "); Serial.print(tlv.y, 4); Serial.print(" mT");
Serial.print("\tZ: "); Serial.print(tlv.z, 4); Serial.println(" mT");
delay(500); // Delay between readings
}
Q: Can the TLV493D sensor be used with a 5V microcontroller? A: Yes, but ensure that the sensor's VDD is connected to a 3.3V supply, and use level shifters for the I2C lines if the microcontroller operates at 5V.
Q: How can I change the I2C address of the sensor? A: The I2C address can be changed by connecting the ADDR pin to either GND or VDD.
Q: What is the default I2C address of the TLV493D? A: The default I2C address is 0x5E when the ADDR pin is connected to GND.
Q: How do I calibrate the sensor? A: Calibration procedures can vary; refer to the TLV493D datasheet for detailed instructions.
For further assistance, consult the Adafruit TLV493D datasheet and the support forums.