Auf der Basis zunächst eines Arduino Ethernet, später der IOT-Basisstation, dann einem Pololu A*Star, und schliesslich (wieder) einem eigenen PCB auf Atmega1284-Basis werden minütlich Daten aus unserem Viessmann Heizkessel, von verschiedenen Wasserzählern, Temperatur- und Feuchtesensoren sowie der Öltankpegel erfasst und in eine Datenbank übertragen. Zudem wird das Hauptventil der Gartenbewässerung angesteuert.
Siehe t5_haus
Teil des T5 Hausbussystems. Daten, Kommandos und Firmware (t5_haus02) werden über CAN-Bus übertragen. Schaltplan und PCB-Layout (letzteres mit manuellen Korrekturen um HGND von VNEG am DRV8833 zu trennen):
// External connections: // C1: VA VA VB VB Main valve // C2: TXD RXD GND +5V Optolink, was: J2 // C3: WQ GND GND HL Warm water resp. garden water gauge, was: J13 // C4: EHO TRG GND +5V Oiltank, was: J6 // C5: B3 A0 GND +5V S1 - , was: J8, cable "Heizraum" // C6: A2 A1 GND +5V - S4, was: J4, cable "Hobbyraum" // C7: A3 A5 GND +5V - A5, DS18B20 one wire bus, requires 10k to +5V. // C8: A4 C7 GND +5V S7 S6, was: J10, cable "Dachboden" part A // C9: C6 C5 GND +5V S8 S9, was: J11, cable "Dachboden" part B // C10: C4 GND +5V - - // C11: CL1 CH1 CL2 CH2 CAN // C12: CL1 CH1 CL2 CH2 CAN // // Cable from t5_valves (6x2), to t5_garage (4x2): // CL1: RED/1a // CH1: BLU/1b // CL2: WHT/2a // CH2: YLW/2b // G15V: WHT/3a, GRN/3b // +15V: WHT/4a, BRN/4b // G9V: WHT/5a, BLK/5b (only from t5_valves) // +9V: WHT/6a, BLU/6b (only from t5_valves)
Pin # | Eagle Jumper Id | ATmega1284P QFN Pin | Id | Func | Arduino Id | Arduino Analog Id | Use |
---|---|---|---|---|---|---|---|
P0 | JP3.8 | 9 | PD0 | RXD0 | D8 | Optolink | |
P1 | JP3.7 | 10 | PD1 | TXD0 | D9 | Optolink | |
P2 | JP3.6 | 11 | PD2 | RXD1 | D10 | Garage | |
P3 | JP3.5 | 12 | PD3 | TXD1 | D11 | Garage | |
P4 | JP3.4 | 13 | PD4 | D12 | S3 | ||
P5 | JP3.3 | 14 | PD5 | D13 | S4 | ||
P6 | JP3.2 | 15 | PD6 | ICP | D14 | ECHO | |
P7 | JP3.1 | 16 | PD7 | D15 | TRIGGER | ||
P8 | JP4.8 | 34 | PA3 | D27 | A3 | S1 | |
P9 | JP4.7 | 33 | PA4 | D28 | A4 | S6 | |
P10 | JP4.6 | 32 | PA5 | D29 | A5 | S7 | |
P11 | JP4.5 | 31 | PA6 | D30 | A6 | S8 | |
P12 | JP4.4 | 30 | PA7 | D31 | A7 | S9 | |
P13 | JP4.3 | 29 | AREF | ||||
P14 | JP4.2 | 20 | PC1 | SDA | D17 | LCD | |
P15 | JP4.1 | 19 | PC0 | SCL | D16 | LCD | |
GRN | 37 | PA0 | D24 | A0 | HL |
Jumper | Pin 0 | Pin 1 | Pin 2 | Pin 3 |
---|---|---|---|---|
JV Versorgung | 3V3 (orange) | 5V (rot) | GND (braun) | RST (schwarz) |
J0 Programmierung | P0 | P1 | GND | 100nF → RST |
J1 Optolink | P1 | P0 | GND | 3V3 |
J2 Garage | P2 (gelb!) | P3 (weiss!) | GND | 5V |
J4 DHT Flur | P4 (N/C, gelb) | P5 (S4, weiss) | GND | 3V3 |
J6 Öltank | P6 (ECHO) | P7 (TRIGGER) | GND | 5V |
J8 Heizraum | P8 (S1) | N/A | GND | 3V3 |
J10 Dachboden1 | P10 (S7) | P9 (S6) | GND | 3V3 |
J11 Dachboden2 | P11 (S8) | P12 (S9) | GND | 3V3 |
J14 LCD | P14 (SDA) | P15 (SCL) | GND | 5V |
Alter Jumper
Jumper | Pin 0 | Pin 1 | Pin 2 | Pin 3 |
---|---|---|---|---|
J0 Programmierung | D0 (RXD0) | D1 (TXD0) | GND | 100nF → RST |
J1 Seriell | D1 (TXD0) | D0 (RXD0) | GND | 5VB |
J2 Optolink | D11 (TXD1) | D12 (RXD1) | GND | 5V |
J4 DHT Hobbyraum/Flur | N/A | S4 (weiss) | GND | 5VB |
J6 Öltank | ECHO | TRIGGER | GND | 5V |
J8 Heizraum | S1 | N/A | GND | 5VB |
J10 Dachboden1 | S7 | S6 | GND | 5VB |
J11 Dachboden2 | S8 | S9 | GND | 5VB |
J13 Wasseruhr | GRN | BLU GND | ||
J14 LCD | D22 (SDA1) | D23 (SCL1) | GND | 5V |