Discussion specific to the DIP and TQFP packaged ZX devices like the ZX-40, ZX-44, ZX-32 and ZX-328 series. The differences between these devices is primarily the packaging and pinout so most issues will apply to all devices.
dkinzer wrote:I've used the MAX3232. For this device operating on 3.3V to 5.0V the capacitors need to be different than the "normal" 100nF. See the datasheet.
For the Serial I/O shield I've managed to find SSOP 3-5V chips for everything except RS485 where the only one I've found that handles 3.3V and 5V is SOIC-8. Anybody know of one that's SSOP?