Design with SparkFun High Precision Temperature Sensor - TMP117 (Qwiic) in Cirkit DesignerThe SparkFun High Precision Temperature Sensor - TMP117 (Qwiic) is a high-accuracy digital temperature sensor that offers a high degree of precision at a low power consumption. It is designed to read temperatures with a minimal error margin, making it ideal for a wide range of applications including environmental monitoring, medical devices, and industrial control systems. The sensor communicates over the I2C interface, making it easy to use with microcontrollers such as the Arduino UNO.
This circuit is a multi-sensor data acquisition system that uses a Nucleo WB55RG microcontroller to interface with a digital temperature sensor (TMP102), a pulse oximeter and heart-rate sensor (MAX30102), and a 0.96" OLED display via I2C. Additionally, it includes a Sim800l module for GSM communication, powered by a 3.7V LiPo battery.
Open Project in Cirkit Designer
This circuit uses an Arduino Mega 2560 to read temperature data from multiple DS18B20 sensors, display the data on an ILI9341 TFT display, and maintain time using an Adafruit DS1307 RTC module. It also receives IR signals using a VS1838B IR receiver and includes an Adafruit MS8607 PHT sensor for additional environmental monitoring.
Open Project in Cirkit Designer
This circuit features an Adafruit QT Py microcontroller interfaced with an Adafruit MPU6050 6-axis accelerometer/gyroscope and an Adafruit VL6180X Time of Flight (ToF) distance sensor, both connected via I2C communication. The QT Py also controls a Servomotor SG90, likely for physical actuation based on sensor inputs. The embedded code initializes the sensors, reads their data, and outputs the readings to a serial monitor, with the potential for motion control based on the sensor feedback.
Open Project in Cirkit Designer
This is a multi-functional embedded system featuring temperature monitoring, timekeeping, visual display, potential Wi-Fi/camera capabilities, magnetic field detection, and power management with emergency stop functionality. It is designed around an Arduino UNO and an ESP32-CAM, with a buck converter for power regulation from a LiPo battery.
Open Project in Cirkit Designer| Pin Name | Description |
|---|---|
| VCC | Power supply (1.8V to 3.3V) |
| GND | Ground connection |
| SDA | I2C Data Line |
| SCL | I2C Clock Line |
| ADD0 | Address pin to set I2C address |
| ALERT | Alert/interrupt output |
#include <Wire.h>
#include <SparkFun_TMP117.h> // Include the SparkFun TMP117 library
// Create a TMP117 object
TMP117 tempSensor;
void setup() {
Wire.begin(); // Join I2C bus
Serial.begin(9600); // Start serial communication at 9600 baud
if (tempSensor.begin() == false) {
Serial.println("The TMP117 did not respond. Please check wiring.");
while (1); // Hang if there is a problem
}
}
void loop() {
Serial.print("Temperature: ");
Serial.print(tempSensor.readTempC()); // Read temperature in Celsius
Serial.println(" C");
delay(1000); // Wait 1 second before next reading
}
Q: Can the TMP117 sensor be used with a 5V system? A: The TMP117 is rated for 1.8V to 3.3V operation. Using it with a 5V system without proper level shifting could damage the sensor.
Q: How can I change the I2C address of the sensor? A: The I2C address can be changed by connecting the ADD0 pin to GND, VCC, SDA, or SCL, each giving a different address.
Q: Is it possible to use multiple TMP117 sensors on the same I2C bus? A: Yes, you can use multiple sensors by setting a unique I2C address for each one using the ADD0 pin.
Q: How do I calibrate the sensor? A: The TMP117 comes factory-calibrated. However, if recalibration is necessary, refer to the manufacturer's datasheet for detailed instructions.
For further assistance, consult the TMP117 datasheet or contact SparkFun's technical support.