Pin assignments
Control Tutor has the following I/O resources connected to the micro-controller:
| S/w Name | Type | Description | uC pin |
| Psh1 | Digital in | Pushbutton1 | RB4 |
| Psh2 | Digital in | Pushbutton2 | RB5 |
| Sw1 | Digital in | Switch1 | RB6 |
| Sw2 | Digital in | Switch2 | RB7 |
| Aux1In | Digital in | Aux1 | RD1 |
| Aux2In | Digital in | Aux2 | RD2 |
| Aux3In | Digital in | Aux3 | RD7 |
| Aux4In | Digital in | Aux4 | RC3 |
| Rv1 | Analog In | Potmeter1 | RA0 |
| Rv2 | Analog In | Potmeter2 | RA1 |
| SoundSensor | Analog in | Microphone (raw) | RE0 |
| SoundAverage | Analog in | Microphone (average) | RE2 |
| TemperatureSensor | Analog in | NTC | RE1 |
| LightSensor | Analog in | LDR | RA5 |
| Filter1 | Analog in | From RC filter 1 (2 sec) | RA3 |
| Filter2 | Analog in | From RC filter 2 (5 sec) | RA2 |
| Aux5Out | Digital out | Aux5 | RB2 |
| Aux6Out | Digital out | Aux6 | RC0 |
| Aux7Out | Digital out | Aux7 | RA4 |
| Aux8Out | Digital out | Aux8 | RB3 |
| Led1 | Digital out | LED1 | RD3 |
| Led2 | Digital out | LED2 | RC4 |
| Led3 | Digital out | LED3 | RD4 |
| Led4 | Digital out | LED4 | RD5 |
| Heat | Digital out | Heating resister | RC5 |
| Voltage | Digital out | Common input for both RC Filters | RD6 |
| Sound | Analog out | Sound frequency control | via RC1 |
| SlowWhoop | Analog out | Sound volume | via RC1 |
| Light | Analog out | LED (affecting the LDR) | RC2 |
Notes:
- The column "S/w name" refers to the name of the symbol used in Realizer when programming.
- "Voltage" is a digital output that drives 2 RC low pass filters. the output of these filter can be measured using the inputs Filter1 and Filter2
Extension connector
The extension connector may be used to add you own hardware like power drivers that control a DC-motor, or add extra switches and sensors.
The following diagram shows important details of the electronics.
- Partial schematics of CT01 board
