Category Archives: Coding

Tutorial for above is here. Tried the first time and fried my usb-c, wasn’t reading that I needed to ground them… Now it works 🙂 Adjusted the frequency to a nicer sounding tone.

Having some time to myself to play with some new sensor, the circuit is pretty straight forward, waiting for my raspberry pi in the meantime.. SensorVCC >> 5VGND >> GNDOUT >> pin 3

Companies that does vulnerability scanning Encrypted Database and todos From the discussions, when a company has a encrypted database(s)– It needs to be backedup– backups needs to be tested and verified using a snapshot on a separate vm instance– if it was encrypted, the generated keys need to be saved– there are ITCP audits that […]

Well, today I needed to debug an error on the server. I needed to search the logs to find what the error was. Finding the particular information that I needed was difficult simply because I wasn’t proficient in vim and linux commands, and, the log was more than 20GB of data.. As usual, I looked […]

After using nightwatch we decided to switch to using jest and puppeteer for the many more apis and functionalities to support our wordpress plugin and chrome extension. A note here though that puppeteer only supports chrome/chromium. If you need to test cross browsers, nightwatch may be better with their browser drivers. To setup jest and […]

So I was pretty tired of updating every single server I was messing around with for experimental purpose so I decided to create an auto scripting for the usual ‘apt update && apt upgrade’ command Go to your server Go to the folder where Cron exists. Cron is a time-based scheduler that allows daily, weekly, […]

Touch sensor https://create.arduino.cc/projecthub/Arca_Ege/how-to-use-a-touch-sensor-81b7f4 The circuit from sensor > arduinoVCC Pin > 5V GND > GND OUT > Pin 2 LED pin (short leg (anode) to ground, long leg to Pin 13) Ultrasonic sensor https://howtomechatronics.com/tutorials/arduino/ultrasonic-sensor-hc-sr04/https://randomnerdtutorials.com/complete-guide-for-ultrasonic-sensor-hc-sr04/ The circuit from sensor > arduino+5 > 5V Trigger > pin 7 Echo > pin 6 GND > GND Pulse/ Heartbeat […]

Moisture sensor 4 pins to Arduino Uno A0 > A0  DO > not used GND > gnd VCC > 5V And in your Arduino code

yeppp! My first project, after waiting approximately 10 days for delivery from China! Bought all the requisites, in twos, and with different sellers, because I was afraid the shipment will break some components or that the particular shipment from the seller is defective. I’m paranoid that way. Heh. DHT 11 or DHT 22 (3 pins) […]