Making a Geiger counter with 555 timer IC
https://www.electronics-lab.com/making-geiger-counter-555-timer-ic/
Radioactive particles are found abundantly in nature. Whether they come from space or generated on Earth (radioactive waste, medical X-rays, etc), they are high-energy particles resulting from radioactive decays. The three major types of radioactive particles are named after the first three letters of the Greek alphabet: α (alpha are helium nuclei), β (beta are […]
Tiny OLED PC Performance Monitor
https://www.electronics-lab.com/tiny-oled-pc-performance-monitor/
Rupert Hirst build a tiny OLED PC performance monitor based on Psyrax’s serial monitor. The display monitors CPU and GPU temperature and activity etc. He writes: After a recent purchase of a Nvidia GTX1080 graphics card, 4k monitor plus Doom(2016), I thought it would be great to see some external telemetry… from my exorbitant purchase. Then, […]
MCU based LED VU Meter
https://www.electronics-lab.com/mcu-based-led-vu-meter/
dannyelectronics.wordpress.com discuss about how to build a mcu based LED vu meter and provides sample code. From time to time, I see people trying to build an audio VU meter. In the analog era, that’s typically done with a voltage divider + a series of comparators; or using chips like LM3914/3915. Those chips are harder […]
RC Signal Monitor Using Bargraph & RC Switch using Relay
https://www.electronics-lab.com/rc-signal-monitor-using-bargraph-rc-switch-using-relay/
The versatile Bar-Graph SMD components based R/C monitor & R/C switch is a great tool for R/C hobbyist R/C modeller and DIY robotics. Tiny Bar-Graph displays provide a Red color bright, easy to read display of Radio Control (R/C) signal from 1mS to 2mS. The Barograph RC Signal reader is based on PIC16F886 microcontroller. This […]
RC Signal Monitor Using Bargraph & RC Switch using Relay
https://www.electronics-lab.com/project/rc-signal-monitor-using-bargraph-rc-switch-using-relay/
The versatile Bar-Graph SMD components based R/C monitor & R/C switch is a great tool for R/C hobbyist R/C modeller and DIY robotics. Tiny Bar-Graph displays provide a Red color bright, easy to read display of Radio Control (R/C) signal from 1mS to 2mS. The Barograph RC Signal reader is based on PIC16F886 microcontroller. This […]
ESP8266 16MB Flash Handling
https://www.electronics-lab.com/esp8266-16mb-flash-handling/
Piers Finlayson shares his adventures in programming the ESP8266 to access 16MB flash: To put this in context, the original ESP8266 modules (such as the ESP-01) offered 512KB of flash, with the more recent ones (ESP-07) 1MB and then 4MB. The maximum addressable flash memory of the ESP8266 is 16MB according to the datasheet. (The […]
MPPT solar charger
https://www.electronics-lab.com/mppt-solar-charger/
Lukas Fässler show us his progress on the MPPT solar charger: One of my main goals with this design is to achieve very low standby current, somewhere in the tens of microamps. The basis for this is a low-power buck on the basis of a Texas TPS62120 where the microcontroller can switch the output voltage […]
RFID Tutorial with an Arduino Uno and an OLED display
https://www.electronics-lab.com/rfid-tutorial-arduino-uno-oled-display/
educ8s.tv uploaded a new video on a RFID Arduino Tutorial: Today we are going to build a very interesting project. For the first time we are going to use RFID tags with Arduino. I have built a simple project which reads the Unique ID (UID) of each RFID tag we place close to the reader […]
C.H.I.P Pro The New GR8-Based Module
https://www.electronics-lab.com/c-h-p-pro-new-gr8-based-module/
NextThing Co., is a hardware company that has the goal to create things that would inspire creativity, and help people chase their own ideas of what needed to exist. After producing their world’s first $9 computer C.H.I.P, they are ready now to launch a new product! C.H.I.P Pro, the newest addition to the Next Thing […]
That’s how nano solar cells work!
https://www.electronics-lab.com/thats-nano-solar-cells-work/
by Harry Baggen @ elektormagazine.com Researchers from the AMOLF institute and Eindhoven University of Technology have developed a theory and an experimental method that for the first time provide a detailed description of how a nanoscale solar cell works. Previously this was difficult due to the extremely small dimensions of these solar cells. This new […]