The HC-548 keypad

Testing the HC-548 keypad with an Arduino UNO

Today I got the HC-548 keypad in the mail, so it’s time to play with it and find out how it works! Another day, another gadget! These little keypads are practically a matrix of switches. No matter if they are the same as the HC-548 or with a different layout (usually without the A, B, C, D […]

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Testing the HC-SR04 ultrasonic range sensor with an Arduino UNO

The HC-SR04 is a pretty cool piece of equipment. It’s one of the few sensors that you actually enjoy testing when you start getting into electronics and Arduino. From what I understand there are two versions, one with three pins and one with four. In this guide we will test the four pin version, in […]

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Arduino UNO connected to ESP-8266-01

How to connect an ESP8266 to an Arduino UNO

There are a lot of guides online on how to connect an ESP8266 to an Arduino uno but there’s too much confusion and not enough explanation. So I’m going to give you the quick version along with the details. Connecting the ESP8266 to an Arduino The steps you need to take are simple. This is written […]

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Goodbye WD, hello HP

My Western Digital My Book World Edition (White Light) NAS died. It did not last long and I am disappointed by the quality of the hardware and firmware. I’ve had constant overheating and speed problems and in the end, the firmware got screwey, and it wouldn’t recognize the 2TB HDD. Thankfully, the HDD itself was […]

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