W55RP20 Fridge Control A 1 2024-10-18 A simple VSCP controler for a fridge based on the WIZnet W55RP20 https://github.com/grodansparadis/vscp-demo-pico-fridge-ctrl 512 Grodans Paradis AB

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Main web site Picture of the first prototype. Firmware for the fridge controller Manual for the fridge controller. 0 0 0 Zone Zone this module belongs to rw Sub zone Sub zone this module belongs to rw Status Status\n bit 0 - Compressor on=1/off=0. r Compressor state Compressor is on if bit is set to one, and of if set to zero. Config Config\n bit 0 - Send alarm on high.\n bit 1 - Send alarm on low.\n bit 7 - enable if set to one High Alarm Enable high alarm if set to true. Low Alarm Enable low alarm if set to true. Enable Enable fridge control module if set to true. rw Temperature event period Period for temperature event in seconds. Set to zero to disable. rw Fridge temperature MSB Current fridge temperature * 100 MSB as signed integer r Fridge temperature LSB Current fridge temperature * 100 LSB as signed integer r NTC B coefficient MSB NTC B coefficient MSB rw NTC B coefficient LSB NTC B coefficient LSB rw Low alarm temperature MSB Low alarm fridge temperature * 100 MSB as signed integer rw High alarm temperature LSB Low alarm fridge temperature * 100 LSB as signed integer rw High alarm temperature MSB High alarm fridge temperature * 100 MSB as signed integer rw High alarm temperature LSB High alarm fridge temperature * 100 LSB as signed integer rw Hysteresis Hysteresis as an unsigned byte rw Settemp Settemp as signed byte. Default = -20 C rw Temperature Current fridge temperature\n r NTC B Coeeficient NTC B Coefficient\n rw Low alarm Low alarm temperature in degrees celsius.\n rw High alarm High alarm temperature in degrees celsius.\n rw High alarm High temperature alarm occurred. Low alarm Low temperature alarm occurred. Temperature Current temperature of fridge. Coding: Integer. Unit: Degrees Celsius. 4 Datacoding Will contain 0b01101000. 16-bit signed integer, unit: Degrees Celsius, Sensor index: 0 MSB of temperaure Byte 0 (MSB) of signed 16-bit temperature value. Counter value Byte 1 of signed 16-bit temperature value. Alarm occured If an alarm is armed this event is sent when it occurs and the corresponding alarm bit is set in the alarm register. 4 Alarm satus Alarm satus byte. Zone Is set to the zone for the module. Sub zone Sub zone for channel or sub zone for module if channel sub zone is zero.