The Design Idea in Figure 1 is a color detector capable of generating an RGB triplet over a high dynamic range, a useful attribute for machine vision applications. The circuit implements auto-exposure control to achieve this. Thus, RGB values for a subject are invariant over a range of light intensity. The three common-cathode RGB photodiodes […]
Color sensor achieves high dynamic range with auto exposure Continue Reading
You’re in a crowded street with many high buildings around you and you find your car position on Google maps is wrong. That’s usual, right? This is caused from (fake/distorted) GPS signals reflected from the high buildings around you which make your GPS receiver do some wrong calculations. So be careful don’t always listen to
2018 Will Mark A Milestone in GPS Technology with 30-centimeter Accuracy Continue Reading
Arduino enthusiasts searching for a tiny development board and Arduino compatible multitool, may be interested in the PocketScreen developed by the development team at Zepsch based in Ludwigsburg, Germany. Designed to provide a combination of Microcontroller, colour OLED, SD card reader, three buttons, RGB LED and charger, as well as the possibility to add a wireless module
PocketScreen tiny Arduino multitool and development board Continue Reading
This is my first time designing a PCB for MSP430. I really like the NRF24L01+ booster pack but I would like something smaller to use for remote temperature sensors. With that in mind I’ve designed a 24.5 x 50 mm PCB (2 on a 5×5 cm prototype) featuring MSP430G2553 and an adapter for a 8-pin
Magic Mote MSP430G2553 wireless sensor node with NRF24L01+ module Continue Reading
is a designer and manufacturer of low power, high speed Non-Dispersive Infrared (NDIR) carbon dioxide gas sensors. Recently, it has claimed a new speed record for its SprintIR6S NDIR CO2 sensor. The new sensor comes with response rates that had never been reached before by any other NDIR CO2 sensors. It can take up to 20 readings per second, and
SPRINTIR6S, WORLD’S FASTEST NDIR CO2 SENSOR Continue Reading
The ppDAQC board from Pi-Plates.com is an inexpensive yet powerful solution for expanding the input/output capabilities of the Spark Core. And since Pi-Plates are stackable, it is a simple task to scale up the I/O capabilities of a single Core. All that is required for connectivity are the four SPI signals (signals A2-A5) as well as a
What is it? This is a small (0.5 x 0.5 inch) breakout board for Texas Instrument’s BQ25504 Ultra Low Power Boost Converter with Battery Management for Energy Harvesting Applications. From the datasheet: “The bq25504 device is the first of a new family of intelligent integrated energy harvesting nano-power management solutions that are well suited for
Features 3V and GND connections can be made from either side and allow you to power a second board such as the MonkMakes Relay Board or MonkMakes Speaker. LED ‘power on’ indicator Reverse polarity protection All three sensors are analog and can be connected to pins P0, P1 and P2 using alligator clips. Getting Started Connecting
Mechanical keyboards with reduced key counts are all the rage these days, but while those streamlined input devices might look cool on your desk, there are times when the traditional number pad or navigation keys are quite handy. Rather than just going without, [Mattia Dal Ben] decided to put together his own mechanical auxiliary input
A CUSTOMIZABLE OPEN SOURCE MECHANICAL NUMPAD Continue Reading
Over the Christmas break, my parents were out of town to celebrate the holidays. When they came back, they saw something every homeowner fears – a flooded basement. In a basement, there are pipes that collect water from around the foundation and bring it into the sump pit, which pumps it out away from the
Creating a Smart Water Sensor with the ESP32 Thing Continue Reading
English 
French