- Fri Jul 22, 2005 8:06 pm
#6283
Hi,
I've bought myself a BlueSMiRF, and a crystalfontz 634 character LCD (I'd link the datasheet, but their site seems down currently), in the hopes of connecting the two together.
When I connect the LCD directly to my computer using the RS-232 connection, everything works fine. However, when connected to the BlueSMiRF receiver, with the appropriate jumper (JPE) closed (to set the LCD to use 0 to 5v inputs rather than RS-232), I only get garbage displayed on the LCD.
Any ideas?
I've tested that the BlueSMiRF connection actually works by connecting the Tx pin to the Rx pin, and everything i type gets repeated in hyperterminal, so I'm pretty sure thats not the problem.
I figured it might have been something to do with the baud settings, so I've tried a few different baud rates, in addition to different parity options, and I always get garbage.
The interesting thing is, when repeating a single character a number of times, the garbage shown on the LCD is around 50% of the time the same character repeating, though it isn't the input'd character, and is intersperced with other characters.
I've bought myself a BlueSMiRF, and a crystalfontz 634 character LCD (I'd link the datasheet, but their site seems down currently), in the hopes of connecting the two together.
When I connect the LCD directly to my computer using the RS-232 connection, everything works fine. However, when connected to the BlueSMiRF receiver, with the appropriate jumper (JPE) closed (to set the LCD to use 0 to 5v inputs rather than RS-232), I only get garbage displayed on the LCD.
Any ideas?
I've tested that the BlueSMiRF connection actually works by connecting the Tx pin to the Rx pin, and everything i type gets repeated in hyperterminal, so I'm pretty sure thats not the problem.
I figured it might have been something to do with the baud settings, so I've tried a few different baud rates, in addition to different parity options, and I always get garbage.
The interesting thing is, when repeating a single character a number of times, the garbage shown on the LCD is around 50% of the time the same character repeating, though it isn't the input'd character, and is intersperced with other characters.