In working with the BS2 module, I’ve had to look up a few things here and there. For example, I’ve used a dev board to program all BS2 modules before they are sunk into IC sockets on the actual project boards that I’ve forgotten how to directly connect a BS2 to my PC serial port. Well here’s a perfect graphic:
I’ve also come across some great sites with tips and tricks for pesky problems, like this tip to solve those random resets you get because of ambient RF/MF noise:
DB9S ---||-------;------/\/\/---;
pin4 0.22uF | 3.3k |
optional |------||------|
| 0.1uF |
atn ground
Or stuff as basic as how to read small capacitor values:
Third Digit pF Multiplier 0 1 1 10 2 100 3 1000 4 10,000 5 100,000 6 N/A 7 N/A 8 0.01 9 0.1 For example: A capacitor marked 104 is 10 with 4 more zeros or 100,000pF, which is otherwise referred to as a .1 uF capacitor.
There’s tons of this info out on the Internet already, but the reliability of the Internet as a data source and the persistence of the information on it both rely heavily on data duplication. Without it, finding information would be next to impossible, as would counting on it being there years later.
