1818281+1818282 Microchip Technology, 1818281+1818282 Datasheet - Page 40

• Manufacturer Part Number: 1818281+1818282
• Description: EDF / AMICUS18 + SHIELD, BUNDLE
• Manufacturer: Microchip Technology
• Type: Development Boardr

Specifications of 1818281+1818282

• Kit Contents: Board
• Svhc: No SVHC (15-Dec-2010)
• Kit Features: Nine 10-bit ADC Inputs, Two 10-bit PWM Outputs, Two Comparators
• Mcu Supported Families: PIC18F25K20
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC18
• Silicon Core Number: PIC18F
• Silicon Family Name: PIC18FxxKxx

Thermostat (decrease in temperature)
In order to illuminate the LED at lower temperatures, use the program below:
' Illuminate an LED when the temperature decreases
' Also display the ADC value of the thermistor connected to AN0
'
'
' Open the ADC:
'
'
'
'
'
'
Once the program is compiled and loaded into the Amicus18 board using the toolbar
gram
LED. To adjust the threshold of the temperature trigger, alter the value within the code line: “If
ThermistorIn >= 750 Then”. A higher value will illuminate the LED at lower temparatures.
Crownhill AssociatesLimited 2009 - All Rights Reserved
Include
Dim ThermistorIn As Word
Symbol LED = RB0
OpenADC(ADC_FOSC_32 & ADC_RIGHT_JUST & ADC_0_TAD, ADC_REF_VDD_VSS, ADC_1ANA)
While 1 = 1
Wend
ThermistorIn = ReadADC(0)
HRSOut
If ThermistorIn >= 750 Then
Else
EndIf
or pressing
Low LED
High LED
"ADC.inc"
"Therm =
F10
Fosc set for Fosc/32
Right justified for 10-bit operation
Tad value of 0
Vref+ at Vcc : Vref- at Gnd
Make AN0 an analogue input
, blowing over the thermistor, thus decreasing the temperature, will illuminate the
", Dec ThermistorIn, 13
Amicus18 Companion Shield
Version 1.0
' Load the ADC macros into the program
' Create a variable to hold the 10-bit ADC result
' Alias the name LED to pin RB0
' Create an infinite loop
' Read the value from the thermistor
' Has there been a decrease in temperature?
' Yes. So illuminate the LED
' Otherwise...
' Extinguish the LED
' Do it forever
39
' Display the ADC value on the terminal
06-10-2009
Compile and Pro-