DISCLAIMER: This is an extremely dangerous project, and it should only be attempted by people with experience in electronics, and specifically, High Voltage. If it’s your first time seek help for your own safety. Homemade High Voltage supplies are unlikely to meet any international standards, the safety and correct operation is NOT guaranteed at all, […]
50,000V High Voltage Power Supply Read More »
Summary The automotive products are quite recognized nowadays. It brings high demand on automotive chip and other related electronic devices. These demands are diverse, which brings difficulties to automotive developers. In this design, users are provided a modifiable firmware using In-System/In-Application Programming (ISP/IAP) via USB. It features the Vertical Alignment (VA) Chip-On-Glass (COG) display module
Automotive Chip-On-Glass LCD Dot Matrix Driver Read More »
it was one year ago that i have published the plant pot – world’s first stand alone smart plant pot that can email you when it’s thirsty, cold, hot, sleeping etc. a lot has changed since the first release. today I would like to share with you our latest and most stable version yet. the
DIY Smart Plant pot Read More »
If you don’t want to read this long long write-up, here is a summary: This spectrum analyzer costs less than $100 to make. It is just a superhet radio that has a log amp where the speaker should have been. You can hack it. It has an Arduino. Works as well as a commercial spectrum
Specan – A reboot of the W7ZOI/K7TAU spectrum analyzer Read More »
Therm is a very small PID controller with an OLED display, thermocouple interface, and USB port. It can switch an external solid-state relay for driving large loads, or a transistor for driving small loads. When attached to a computer, it enumerates as a USB serial port for easy control and logging of data. The design
Therm: a Tiny PID Controller Read More »
Fans of HiFi sound and similar „audiophils“ usually don´t cover their loudspakers and surely not their membranes. Firstly, to cover a beautiful top-class loudspeaker is almost a sin 🙂 and naturally all that stands in a way of sound usually influences it in a negative way. However, totally different situation is in traffic, audio bells,
Visaton Exciter – an exciting loudspeaker Read More »
Atmel® Corporation (NASDAQ: ATML), a leader in microcontroller (MCU) and touch technology solutions, today announced the company has expanded its popular family of secure, ARM® Cortex® M0+-based MCUs with the SAM L22 series. The Atmel | SMART SAM L series is the highest scoring product family in the EEMBC ULPBench, the leading independent low-power benchmark.
Writing Your Lua Script Don’t forget that first you need to flash your ESP with NodeMCU firmare. Copy and paste the code below into ESPlorer. Then edit line 5 with your network credentials and line 13 with your API KEY. — Rui Santos — Complete project details at http://randomnerdtutorials.com wifi.setmode(wifi.STATION) wifi.sta.config(“YOUR_NETWORK_NAME”,”YOUR_NETWORK_PASSWORD”) — A simple http
Posting a Tweet with the ESP8266 Read More »
Cypress Semiconductor has introduced what it believes to be the lowest-available-power PMICs that enable an integrated module size of 1 cm² for solar-powered wireless sensor node (WSN) designs. Intended to manage solar-powered wireless sensors for Internet of Things (IoT) applications, these parts are said to be the lowest-power, single-chip Energy Harvesting PMICs, and can be
Energy-harvesting power management ICs for wireless sensor nodes Read More »
There is a large cellar where I could store unused items and documents, but the catch is the humidity there. It is a root cellar near a small brook and the humidity varies between 75% up to 90%. Archived material should never be exposed to humidity greater than 65%, therefore I have to isolate all
DHT22 Humidity datalogger Read More »
