ESP8266 Digital Pocketwatch — And Network Sniffer

Pocket watch or network sniffer? Not sure. Both? A portable web server? I haven’t figured it out yet.

Using a recycled LiPo battery from an eCigarette. MakerFocus ESP8266 WiFi dev board with 0.91″ OLED display and charging circuit.

The 3D printer makes iterating though designs easier. A lot of unused parts, but we use them during classes to illustrate the progression of work — it’s not right the first time! Or the 5th!

Tools On My Desk : Calipers

Small Calipers are a must when working on 3D projects (among other things). I have larger (6″+) metal ones, but wanted something that would be easier to toss on my desk for quick measurements. This General digital is small (3″) and non-metallic, so I can fiddle around electronics. MM, Inches, and Inches Fractions. Though, if you are doing 3D printing work, you only care about the mm. When working on custom projects, I use this dozens of times a day. About $14.

I also keep this little brass caliper, designed for jewelry work, in my shop coat pocket at all times. It’s handy for doing rough measurements. $9