OverviewCurrently there are over 422 million people worldwide suffering from diabetes. 28.5% of them suffer from Diabetic Retinopathy(1) . 50% of diabetics are unaware about the risk of losing their vision(2). The number of cases of diabetic retinopathy...
Ramping up to 100V in a 'Flex Module' sized board is quite challenging. I originally worked with LT to develop the current follower design. Powering a low current 100V source is challenging. I am still researching designs, but I have found multistage...
Thanks to RT-Thread OpenSource Community Developer #hyafz contributed and opensource this application.1 Introduction plccore is a RT-Thread-based runtime core for programmable logic controller (PLC), together with the upper computer programming...
We have an 89 year old Aunt who has lived in the same house for over 50 years. She absolutely loves this house and does not want to leave. However, the house has many stairs making it difficult to get around. She is afraid that she will have to move...
Z-Uno was designed to allow people to make their own IoT devices for their Smart Homes. Many times we were asked "Is there a pressure/radiation/water level/.../whate ever sensor in Z-Wave?" and we found that it would be cool if people can make their...
The journey began with this thing. It was originally $7 before inflation of course. https://www.walmart.com/ip/Nano-Mist-Sprayer-Handheld-Portable-Facial-Mist-Sprayer-Face-Steamer-Deep-Moisturzing-Mini-Humidifier-for-Home-Work-Travel/959711192...
Nowadays USB port is used widely for data transactions between electronic devices and computers. In many scenarios, there is no need to communicate with the USB port directly, therefore electronic designers use USB to UART (RS232-Serial) converter chips,...
Briefly about architecture and instruction set - it is 8-bit design with 8 registers: 000 - 0 (always zero) 001 - A (accumulator) 010 - B 011 - C 100 - D 101 - E 110 - F (flags and 3 higher bits for jumps) 111 - G (8 lower bits of program counter) Flags...
A powerfull dev board with the ESPRESSIF™ ESP32-S2®, a high resolution display, a RGB LED, a battery charger and a bunch of GPIOs. There are many ESP32 board on the market but very few with the new ESP32-S2 which handles USB communications, new...
You can use the ESP32 simulator on Linux, Windows or even Chromebooks! The project runs on the browser. So, you can always run the projects on mobile as well! There are several users using the ESP32 simulator on their MacOS as well! The connection diagram...
Project choices and the mission As stated in the summary, my goal is to provide an open solution to the bipedal walking problem, in order to give others a starting point and source of inspiration. This includes hardware designs, drawings, assembly plans,...
Note: this is a complex project with many details. For the short version, please see:Portable environmental monitor presentationProduction ready design documentIntroductionLast year (2014) I put my spare time to some really good use: I designed my first...
Short Summary This solar powering unit is a time switching battery powered solar charged circuit, used to power an Arduino Uno and some peripherals. The solar powering unit presented here is energy efficient. When we talk about Arduino, it consumes lots...
A clock built with eight authentic soviet vacuum fluorescent display (VFD) tubes, a custom designed circuit board, firmware and 3d-printed case It is an evolution of Phalanx. Many of the firmware improvements made for Ameise also trickled down to Phalanx...