These are some great DIY projects that you can do for cheap.

Learn how to repurpose your spare ESP32 boards into cost-effective presence detection sensors using the Tommy Sense ...

All the codes above have been tested as working at the time of submission. However, codes with unknown expiry dates may stop working at any time. Spotted a new code we haven't included or tried one ...

Can an ESP32 detect people without cameras or motion sensors? Discover how Wi-Fi signal disturbances, CSI, and smart DSP enable real-time occupancy and mov ...

The ESP32 keeps finding new jobs in my house.

Looking for a big boost of Ichor to bolster your squad of Toons in Dandy’s World? We’ve got some redeemable codes that will load your wallet up with a ton of free cash. Below, you’ll find a list of ...

If you love bare-hand fights in a video game, slapping is one of the fun ways to deal with enemies. Roblox Slap Battles is exactly that, plus a lot more. Slapping feels more fun when you have the best ...

April 23, 2026: We added two new Dress to Impress codes. Dress to Impress is one of the most popular Roblox experiences out there, with more than 7 billion visits. As you progress through the ranks ...

The 8051 was an 8-bit Harvard-architecture microcontroller first put out by Intel in 1980. They’ve since discontinued that line, but it lives on in the low-cost STC8 family of chips, which is ...