Proximity sensing is a very common application in electronics. There are several ways to accomplish this. The most common way is by using a PIR sensor. PIR Sensor senses the change in ambient infrared radiation caused by warm bodies. I have already...
PicoRAM 2090 A Raspberry Pi Pico (RP2040)-based 2114 SRAM Emulator and Multi-Expansion for the Busch 2090 Microtronic Computer System. Final Demo Video on YouTube: I have written about the Microtronic here before, and done a few Microtronic-related projects:...
What is it ? End of August, my brother designed a small PCB to accomodate the excellent project OpenXsensor on Raspberry Zero. Mstrens published a very versatile solution to use this cheap but powerful MCU to get a multiProtocol solution for telemetry....
Another Wattmeter project is here, but this time everything is controllable digitally. We are using the INA219 as a digital device that allows the measurement of current, voltage, and therefore power. Simply, connect wire serial through this device and...
Embark on a journey to liberate your internet connection from the constraints of the BGW-320 modem-router with this step-by-step guide by SimeonOnSecurity. This guide walks you through the process of bypassing the BGW-320 and implementing an Azores WAG-D20...
Specifications Parameter Description Input voltage Usb-C cable, Header 4-6v, Direct 3.3v Current Wifi: 150-250mA, Radio Off: 44mA, Only HV psup 4mA, Deep sleep 70uA Communication 2.4ghz WIFI, Uart TTL, Uart over USB Baudrate 115200 PCB size 31x119mm...
I'm working on a schematic for this, but it's taking a while since I'm using so many "module" parts that dont have symbols. In the meantime, here's a description of what's going on:Power comes from a rechargeable 12V battery, which is cut off from the...
Just like other projects of this type, I think this is a great simple starting point to understand a CPU. It is one step simpler than the CHUMP design for example. Though not really practical for any real use, but shows the basic parts. If this were...
November 1 update: IT WORKS!!! It's a day late, but it works! I couldn't be happier!!! Fixing that integer overflow bug did the trick! I still need some tuning before I can call it reliable or smooth. But oh my gosh, it works! Halloween...
MetaShunt leverages a simple idea - by quickly and accurately measuring the voltage across a current shunt resistor and engaging additional shunt stages when needed, MetaShunt ensures that it can provide accurate current measurement across a range of...
Based on ESP32-S2 Wi-Fi SoCNo driver installation requiredProvides virtual serial port on host Targeted for modern devices with USB Type-C ports Compatible with Windows, Linux, Mac, and AndroidPeer-to-peer wireless communication over 2.4 GHzData...
First, it is important to mention that this only works with mice that support the PS/2 protocol. Modern mice, for example the wireless ones only support USB and don't "understand" PS/2 any more. PS/2 is a serial protocol, similar to the UART protocol....
The FX 7700 always had a mystique about it which no other lion calculator had. Perhaps it was because it was Casio's top of the line in 1992 & lions never had the top of the line of anything. Perhaps it was the amazing feel of the buttons which...
The idea I have an old Trotec laser engraver. It was built in 1998 and worked quite well until this summer 2023. So I would say that it was a very reliable machine but it now suffers from its old age: laser tube is deadsoftware is very very old fashioned...
The TEC-1G remains true to the original TE design goals: it is is built using only simple through-hole TTL logic chips so it is easily built and understood by the hobbyist. For the first time, the TEC-1G will also be fully free and open source, in both...