I have been interested in getting a multimeter that can connect to a smart phone for some time. I write on multimeters that connect to a smartphone in my blog already in 2014. I finally bought one: UT60BT. This UT60BT multimeter is feels reliable and feature-packed tool. This meter connects to your smartphone via Bluetooth, →
I got from sale some probes for multimeter: Universal Multimeter Test Hook with Miniature Plane Type IC Clip and Probe Needle Versatile for High Pressure Differential Applications Accurate Readings and Secure Connectivity One end those probes have has a small clip that works with small electronics. The other end fits normal multimeter probes (2 mm →
A soldering gun is an approximately pistol-shaped, electrically powered tool for soldering metals using tin-based solder to achieve a strong mechanical bond with good electrical contact. The tool has a trigger-style switch so it can be easily operated with one hand. Soldering guns are often used where more heat is needed than from the lower-power →
R413D08 is a 8 channel relay control board that is designed to be controlled from your computer through through the RS-485 interface. The idea is that this board takes control commands from computer (MODBUS or AT commands) and gives out signals that can control relays. The output from this card are 5V TTL level signals →
This posting is here to collect cyber security news in March 2024. I post links to security vulnerability news to comments of this article. You are also free to post related links to comments. →
Here is a Modbus RTU Relay Module I got some time ago, but waited for time to test it. It is a Modbus 2-channel relay module is expected to be very useful device for making something Modbus compatible. It should be suitable for industrial control equipments and/or component in IoT applications. Description: Specification: Power Source: →
I had ordered months ago a XY-MD02 Temperature and Humidity Transmitter Detection Sensor Module Modbus SHT40 Temperature Sensor from some Chinese source (it is available from many on-line shops). Now I had finally some time to test it. Parameters: Product name: temperature and humidity transmitter DC power supply: DC 5V-30V Output signal: RS485 signal Temperature →
You don’t need to always have USB C to be able to plug the connector both ways. Here is an USB A – microUSB cable where both ends plug in both ways. Some kind of USB C wannabe? Here you see a design for a USB-A connector that’s fully reversible. It uses a very thin →
Here is a look at old KEMO M087 LED tester module (the original M087 is discontinued product but there is a newer different looking M087M product. With the aid of this test module it is made possible to carry out tests with all kinds of light emitting diodes in order to check function, brightness, colour →
This picture from Supertietokone, joka toimi myös sohvana article shows the classic Cray supercomputer from the 1970s and 1980s, which was specially designed – as Cray computers have always been. It does not a traditional computer, but as a strange seat. And you can really sit on one of those if you get access to →