Vaibhav Singh

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Category: D.I.Y

Hydroponics shopping list

Been collecting some information to kick off a balcony garden. Following is the list of required items and their approximate cost – Air Pump – INR 200 Air Stone Non-return valve – INR 100 Timer Switch – INR 250 EC PH Meter – INR 1200 Nutrients for 100 litre grow – INR 120 Every plant […]

Store personal passwords securely

Digital security practices recommend use of complex passwords which are unique to each website or service because if you would use only one password everywhere and someone gets this password, you would have a problem; the thief would have access to all of your accounts. There are various tools or methods to accomplish this. I […]

Interfacing 16×2 LCD with Raspberry Pi 3 using GPIO

This note is to document how I finally managed to connect a HD44870 (JHD162A) based generic 16×2 LCD with my Raspberry Pi 3. I was at it for two days but the module just wouldn’t display any text, only the back light would stay lit but just won’t display any text. Wiring I followed [this] […]

Embedded Linux on my consumer grade IP CAM

Lately I have been messing around with tiny devices that have a SoC with embedded Linux on them typically equipped with an ARM processor or similar. Such a new toy in my collection to tinker with is a cheap IP Camera that I bought from Thailand. Steps Disassembling the outer case Soldering USB TTL cable […]

5 in 1 console cable

Wouldn’t it be nice if you had all these type of connectors in a single cable? It would be a serious field tech’s dream tool. In addition look [here] for more elaborate pictorial description.

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