In this example we will create a gui to switch on and off the LED that we used in the PWM example – Controlling the Brightness of an LED Here is a reminder of the schematics Code Save the following as gpiogui.py [codesyntax lang=”python”] from Tkinter…

In this example we will show you how to control the brightness of an LED connected . The RPi.GPIO library has a PWM feature that allows you to control the power to an LED and its brightness, we will use this in this example   Schematic…

Changing the name of your Pi is a pretty straightforward task. There are just two files that need to be changed to do this. First, edit the file /etc/hostname. You can do this by opening a Terminal window and typing the following command: [codesyntax lang=”bash”]…

In a previous post we showed an example of the MPU6050 sensor and a Raspberry Pi using wiringPi and C++. This time its a python code example Raspberry Pi and MPU-6050 C example Code [codesyntax lang=”python”] import smbus import math import time # Power management…

The MPU-6050 devices combine a 3-axis gyroscope and a 3-axis accelerometer on the same silicon die, together with an onboard Digital Motion Processor™ (DMP™), which processes complex 6-axis MotionFusion algorithms. The device can access external magnetometers or other sensors through an auxiliary master I²C bus,…

The PCF8574 is an 8 bits I/O port expander that uses the I2C protocol. Using this IC, you can use only the SDA and SCL pins of your Arduino board to control up to 8 digital I/O ports. A0,A1,A2 are address pins P0,P1,P2,P3,P4,P5,P6,P7 are digital…

The HDC1008 is a digital humidity sensor with integrated temperature sensor that provides excellent measurement accuracy at very low power. The device measures humidity based on a novel capacitive sensor. The humidity and temperature sensors are factory calibrated. The sensing element of the HDC1008 is…

This bmp180 from Bosch is the best low-cost sensing solution for measuring barometric pressure and temperature. The sensor is soldered onto a PCB with a 3.3V regulator, I2C level shifter and pull-up resistors on the I2C pins. The BMP180 replaces the BMP085. Specification Pressure sensing…

The L3GD20 is a low-power three-axis angular rate sensor. It includes a sensing element and an IC interface capable of providing the measured angular rate to the external world through a digital interface (I2C/SPI). The IC interface is manufactured using a CMOS process that allows…

The MMA7455L is a Digital Output (I2C/SPI), low power, low profile capacitive micromachined accelerometer featuring signal conditioning, a low pass filter, temperature compensation, self-test, configurable to detect 0g through interrupt pins (INT1 or INT2), and pulse detect for quick motion detection. 0g offset and sensitivity…