Of course, we all know that capacitors are conceptually two conductors separated by a dielectric of some sort. But outside of air-variable capacitors you normally don’t see them looking like that. For example, a film capacitor has its plates rolled up in a coil with an insulating film in between. You can’t really see that […]
TAKING A CLOSE LOOK AT PARALLEL PLATE CAPACITORS Read More »
Have an old Raspberry Pi sitting around? Then it’s time to put it to work! In this project, I will be telling you how to make a google assistant using a Raspberry Pi! Supplies Any Raspberry Pi (Faster is better) Micro sd card Usb Microphone Speakers Step 1: Setting Up Raspberry Pi OS The first
Google Assistant on a Raspberry Pi! Read More »
A couple of years ago Skytraq launched the NavSpark mini, a tiny (17x17mm) GPS module, that sold for $6. However, the company has now launched an even smaller module called Skytraq PX1122R, which measures at just 16x12mm, and offers support for GPS, Galileo, GLONASS, and Beidou signals, as well as Real-time Kinematic (RTK) relative positioning technique that enables 1-3cm positioning accuracy. The Skytraq PX1122R RTK GNSS
SKYTRAQ LAUNCHES TINY PX1122R MULTI-BAND RTK GNSS MODULE, ENABLING CENTIMETER ACCURACY Read More »
The usual approach to radiation detection is the use of a Geiger-Müller tube and its high voltage circuit requirements, but during a quick surf through the internet today, I came across this portable and “accurate looking” solution developed by Stefan Wagner, on EasyEDA. Rather than the Geiger Muller tube and its complex circuitry, the project uses a miniature Silicon PIN
BPW34 GAMMA RAY DETECTOR Read More »
Maker Kaisar has shared some amazing mini Raspberry Pi robots he has created in the form of the Pica and Dot. Building on his previous tiny robots using the Raspberry Pi Zero computer first unveiled back in 2021 the latest creations are even smaller and getting smaller with every iteration. The Pica features a Pimoroni’s
Mini Raspberry Pi robots Pica and Dot Read More »
Raspberry Pi enthusiasts may be interested to know the team from Arducam have taken their 16 megapixel Raspberry Pi camera module to Indiegogo. The campaign offers a chance to own the high resolution autofocus camera module at a discounted price saving 38% off the recommended retail price. The open source camera features a Sony IMX519
16mp Raspberry Pi camera module $15 with Sony IMX519 sensor Read More »
Amazon Prime is rising in price for the first time since 2018. The company has revealed that it is using the latest revenue to raise prices to $ 15 per month (previously $ 13) or $ 139 per year (previously $ 119). High rates apply on February 18th for new customers, but will not take
Amazon raises prime price to $ 139 a year Read More »
Most vacuum tubes need about 6.3V high supply plus filament voltage to operate. Running at 3.3V inclusively of the filament voltage, the new vacuum tube amplifier from Albert van Dalen has proven it possible to have one with the capacity to operate on an entirely low power supply voltage and still work well. To be able to
VACUUM TUBE PRE-AMPLIFIER RUNS ENTIRELY ON 3.3V, INCLUSIVE OF FILAMENT VOLTAGE Read More »
Long-term Raspberry Pi watchers will have seen a lot of OS upgrades in their time, from the first Debian Squeeze previews through the Raspbian years to the current Raspberry Pi OS. Their latest OS version is something different though, and could be one of the most important releases in the platform’s history so far, as
A 64-BIT RASPBERRY PI OS AT LAST Read More »
This project has been developed to charge SLA (Lead Acid Batteries) . It helps to charge 12V Lead-acid battery up to 12Ah in capacity. Specific current output is possible by altering the current sense resistor. The BQ24450 chip contains all the necessary circuitry to optimally control the charging of valve-regulated lead-acid batteries. The IC controls the charging
12V SLA LEAD ACID BATTERY CHARGER USING BQ24450 Read More »
