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Volterman, Your Personal Smart Wallet
With the rapid growth of technology, smartphones and e-payments are replacing cards, cash, and wallets. However, developers are still trying to keep wallets relevant in the 21st century, and Volterman...
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Bomist – Parts Inventory and BOM Management for Electronics
It all started a few years ago with Component Organizer, than BOMER and it’s now called BOMIST. The software runs locally, so no server nor setup required and you can have as many databases as you...
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Programmable Power Supply Using OPA548
Project provides 1.2 to 20V DC output with current limiter adjustable to 0-5A. I have tested the circuit with 250mA output without a heat sink. Project is capable to drive 3A continues load and 5A...
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Using an ATmega328 without a crystal
Here is another guide from David Johnson-Davies @ technoblogy.com explaining how to program an ATmega328 on a breadboard using the Arduino IDE. The guide is focused on how to use the internal clock of...
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CH340E, A New Small Serial to USB Chip
WCH, a Chinese integrated circuits manufacturer, has just released a new serial to USB chip called CH340E. Unlike other CH340 chips, it doesn’t require an external crystal and also needs less PCB space...
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Atmel ATmega8 – A World-Famous Microcontroller Created By Two Annoyed Students
AVR is a family of microcontrollers developed by Atmel beginning in 1996. These are modified Harvard architecture 8-bit RISC single-chip microcontrollers. The Atmel AVR core combines a rich instruction...
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How to drive Nokia 5110 84×48 LCD display with Arduino
In the previous tutorial I showed how to build a weather station using DHT11 and BMP180 with an Arduino. However, the project has a downside which is the power consumption of the 16X2 LCD. If we were...
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R&S®NGE100 power supply series with WiFi option
The R&S®NGE100 power supply series consists of robust, high-performance, affordable instruments. They offer high efficiency combined with low ripple plus a variety of comfort functions that are...
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Design of a Korg Nutube Amplifier
Karlwoodward @ www.rs-online.com/designspark is in the process of designing a “guitar pedal” for amplification and distortion using the Korg Nutube we featured earlier. The Part 1 of a series of...
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Details of Waveshare e-paper displays
Erich Styger has a nice write-up on Waveshare e-paper displays: I have used E-Ink displays in projects three years ago, but from that time the technology has greatly evolved. That time displays were...
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BPi M2 Zero, A Clone of Raspberry Pi Zero
A few days ago, we talked about the Banana Pi M2 Magic as the smallest Banana Pi board. Now we have the Banana Pi M2 Zero, another board by Sinovoip that follows the Raspberry Pi Zero form factor. The...
View ArticleESP32 Web Server Tutorial with a BME280 Sensor
Our friends at educ8s.tv uploaded a new tutorial on their youtube channel. It’s about an ESP32 web server along with MBE280 sensor. Welcome to another ESP32 video tutorial! In this video, we are going...
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Open-Source NB-IoT Shield for Arduino
This completely open-source LTE shield uses the latest and greatest CAT-M NB-IoT technology optimized for low-power IoT devices!. With the emergence of low-power IoT devices with cellular connectivity...
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Developers can implement simple sensing functions with TI’s lowest-cost microcontroller family Texas Instruments (TI) on November 10, unveiled its lowest-cost ultra-low-power MSP430 microcontrollers...
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The top 10 humidity sensors
Elizabeth Bustamante @ snapeda.com compiled a list the top 10 humidity sensors available today. Most of the sensors on the lists are from Honeywell, but surprisingly the top sensor comes from...
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Programming the ATtiny10 using Arduino IDE
David Johnson-Davies @ technoblogy.com has a nice guide on how to program ATtiny10 6-pin mcu using the arduino IDE. Programming is done using the widely available USBasp programmer from Thomas Fischl....
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2 X AA Battery To 6V Boost Converter For Arduino Nano
This project is simple solution to power Arduino Nano from two 1.5V batteries. Circuit converts 2 X AA alkaline battery power into 6V 100mA using boost topology. Circuit uses SOT223-6 pin TLV61046A...
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sKan – Low cost and non-invasive melanoma detection device
A team of medical and bioengineering undergraduates from McMaster University, Canada have designed a cancer detection device able to detect melanoma. Their design solution, the sKan, is a low cost and...
View ArticleREFLO – Compact, open, and smart PCB reflow oven
REFLO is a stylish, portable reflow oven for creators and makers to easily, quickly, and professionally prototype their IoT device, wearable, small robot, etc. REFLO’s features: Portable at only 6” x...
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HeartyPatch – Open source ECG patch with Wifi
An ECG patch with HRV monitoring that’s open source, affordable, and Wi-Fi/Bluetooth connected. HeartyPatch is a completely open source, single-lead, ECG-HR wearable patch with HRV (Heart Rate...
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