For this project I have used an Arduino MKR 1000 and a Waveshare 2.9 inch e paper display, these are the only two pieces of hardware required. The purpose of this project is to take weather data from a internet source – in this instance I used Open Weather Map as the source for my weather information. A subscription is required with Open Weather Map in order to obtain an API (Application programming interface) key. The API key enables access to data from within the service. Access to the API site is obtained using the MKR 1000’s low power 2.4Ghz Wi-Fi chip with a connection to the local networ ..read more

7 band spectrum analyzer with colour control display For this project i have used a Rheingold Heavy MSGEQ7 spectrum analyzer chip / breakout board, a Teensy 3.2 microcontroller, 2 x WS2812B 8×8 led matrixes and an NX8048K070 Nextion enhanced 7.0″ HMI touch display. Taking an audio input from a mobile telephone, we can read the levels from 7 frequency bands… 63 HZ 160 HZ 400 HZ 1 KHZ 2.5 KHZ 6.25 KHZ 16 KHZ The input is run through a bandpass filter to isolate the required frequency and is then passed through a peak detector to analyze the strength of this signal. Rheingold Heavy MSQEQ7 The y ..read more

AUDEME MOVI SHIELD MOVI stands for ‘My own voice interface’. It is an Arduino compatible shield designed primarily for the Uno and Mega boards. MOVI is programmed using the Arduino IDE and has a relatively simple set of functions for ease of operation. This unit does not require any form of internet connection or the recording of any voice samples. It has a built-in microphone and can detect speech up to 10 feet away. In the image above, I have added my own microphone and speaker into the external sockets on the device. Unfortunately, MOVI cannot be powered using the USB port and requires a ..read more

Testing / investigating the ST Nucleo -f103RB and Teensy 4.0 with an MCP 4231 digital potentiometer Code to follow… The post Other boards appeared first on Clock and Data ..read more

Satellite data using A GT-U7 receiver, 2 x SSD1306 OLEDS  and Arduino nano Schematic of GPS project A basic GPS receiver using an Arduino Nano, a GT_U7 receiver and 2 Organic Light Emitting Diode (OLED) displays (SSD1306) . The sketch uses the TinyGPS++ library to translate the incoming data and is displayed on the OLED using the I2C bus. As each display comes preset to the hex address of 0x3C it is necessary to change the address of the other display to 0x3D. To change the address you will need to de solder the 0 ohm resistor on the reverse of the OLED display and re solder it to the opp ..read more

A popular project for many of those experimenting with Arduino is ultrasonic range finding. These projects often involve using the HC SR04 ultrasonic sensor and displaying its output to the serial monitor. In this post, I will construct a similar arrangement but use the Maxbotix mb7060 ultrasonic sensor, an LCD display (old school) and a TC74 I2C digital thermometer. The purpose of the thermometer is to take samples which will be used in a function to compensate for the effect of temperature on the speed of sound. The mathematics and physics relating to the relationship between temperature an ..read more

Lidar stands for ‘ light detection and ranging’ and is a method of measuring distances using the reflected beam of a laser. The difference in return times can be used to map objects and create imagery of the scanned environment. The unit being tested here is the RPLIDAR, a 2D 360 degree device with an up to 6 metre scanning radius. RPLIDAR In order to use the LIDAR you will need to install the RPLidar library – there are a couple of examples contained within this library but basically you can retrieve 4 items of data, as shown below… float distance = lidar.getCurrentPoint().distance; //di ..read more

Welcome to the Clock and Data lounge, we will endeavour to add more content and projects over time but for now have just published a few examples (more information on each project will follow). We hope as an electronics and programming community we can support each other and further our knowledge in this vast area. If you have any suggestions on how we can improve this environment please comment/contact us. We look forward to hearing from you all. The post The start of a journey! appeared first on Clock and Data ..read more

For this project I have used an Arduino MKR 1000 and a Waveshare 2.9 inch e paper display, these are the only two pieces of hardware required. The purpose of this project is to take weather data from a internet source – in this instance I used Open Weather Map as the source for my weather information. A subscription is required with Open Weather Map in order to obtain an API (Application programming interface) key. The API key enables access to data from within the service. Access to the API site is obtained using the MKR 1000’s low power 2.4Ghz Wi-Fi chip with a connection to the local networ ..read more

7 band spectrum analyzer with colour control display For this project i have used a Rheingold Heavy MSGEQ7 spectrum analyzer chip / breakout board, a Teensy 3.2 microcontroller, 2 x WS2812B 8×8 led matrixes and an NX8048K070 Nextion enhanced 7.0″ HMI touch display. Taking an audio input from a mobile telephone, we can read the levels from 7 frequency bands… 63 HZ 160 HZ 400 HZ 1 KHZ 2.5 KHZ 6.25 KHZ 16 KHZ The input is run through a bandpass filter to isolate the required frequency and is then passed through a peak detector to analyze the strength of this signal. Rheingold Heavy MSQEQ7 The y ..read more