Guru
Joined: 22/02/2006
Location: AustraliaPosts: 2155
| Posted: 07:28am 31 May 2026 |
Well guy's as I keep getting errors with my surface grinder project it is going to take Lyle to the rescue to finish it off.
So now I as had that spare 3.5" ILI9488 LCD I hooked up with my zero board only to find the touch would fail and doing a research Phill gave a while ago pointed me at the spi lines well finally I got the touch calibrated
> option list
PicoMite MMBasic RP2040 V6.03.00RC14
OPTION SYSTEM SPI GP10,GP11,GP12
OPTION COLOURCODE ON
OPTION CPUSPEED (KHz) 200000
OPTION LCDPANEL CONSOLE
OPTION DISPLAY 26, 60
OPTION LCDPANEL ILI9488, LANDSCAPE,GP2,GP1,GP0,GP5
OPTION TOUCH GP4,GP3
GUI CALIBRATE 0, 4062, 4061, -840000, -866666
PicoMite MMBasic RP2040 V6.03.00RC14
OPTION SYSTEM SPI GP10,GP11,GP12
OPTION COLOURCODE ON
OPTION CPUSPEED (KHz) 200000
OPTION LCDPANEL CONSOLE
OPTION DISPLAY 26, 60
OPTION LCDPANEL ILI9488, LANDSCAPE,GP2,GP1,GP0,GP5
OPTION TOUCH GP4,GP3
GUI CALIBRATE 0, 4062, 4061, -840000, -866666
Now what I found was hitting enter in MCCC after I ran the program with Phill's code for the DS1820 thread.
50
Temp = 18.1°C
50
Temp = 18.1°C
50
Temp = 18.1°C
5
> mp = 18.1
> mp = 18.1°
> 0p = 18.1
> mp = 18.1°
> option list
Temp = 18.1°C
50
Temp = 18.1°C
50
Temp = 18.1°C
5
> mp = 18.1
> mp = 18.1°
> 0p = 18.1
> mp = 18.1°
> option list
As for this project if I'm correct we switch the active rather than the neutral line on the AC a 12 volt relay is needed so a new PCB will be designed.
Now my idea is as I have a 240 volt AC 30 watt heating belt that will cook a 25 litre fermenter so temperature control is needed.
So using the DS1820 we can keep a 22-26 C range so the beer ferment goes smooth and lets face it US Aussies just love a beer where temperature controlled ferment is needed to get that right drop.
Anyway thats my goal but honestly the PCB design will work for any temperature range we set it too with 2 relays that can switch AC loads to achieve the temperature ranges we need.
Regards Bryan