#garfield Logs

Feb 03 2025

02:14 AM polprog: rue_mohr: that esp01 is neat
02:30 AM polprog: i should do somiething with the esp32 board I have...
02:30 AM polprog: ohhh that io expander board is for esp01 too
02:30 AM polprog: neat!
07:58 AM rue_mohr: yea, I'll post the expander
07:58 AM rue_mohr: I should make sure its ok first
07:59 AM rue_mohr: I was surprised how slow the exchange fn runs on the esp01
04:30 PM polprog: https://i.ibb.co/h1ZnSsmT/IMG-20250203-210835609-HDR.jpg
04:31 PM polprog: I got this for $20
04:31 PM polprog: it's a CATV analyzer
04:31 PM polprog: but it has a spectrum sweep option, and a speaker to demodulate the given carrier
04:31 PM polprog: 5M to 1G sweep range (because broadband uses that)
04:32 PM polprog: I just managed to demodulate the local FM station, it works like a regular spectrum analyzer