Anne und Sebastians Wiki

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.

Hunter PGV-100/101 24V-AC-Ventil

Siehe t5_haus

DHT22, HC-SR04

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):

// t5_haus02
// Monitors in-house temperature, humidity, central heating, oil tank and garden water consumption, and controls main garden irrigation valve. 
// Sends and receives data via CAN bus. Part of the T5 monitoring and control system.
// Board schematics can_heiztemp1284_v01_mod 26-May-2022 https://wiki.wangnick.de/doku.php?id=t5_haus
// Controller used is Atmega1284P
//    16MHz external crystal
//    RESET - 10k - +5V
//    D0-RXD0 and D1-TXD1 for debug output
// DHT22 use uC internal pullups during reception and drive line high otherwise. Connections:
//    B3 - S1 (Heizraum über Wassertank)
//    A0 - S4 (Flur unten)
//    A1 - S6 (Dachboden)
//    A2 - S7 (Hallenisolierung aussen)
//    A3 - S8 (Hallenisolierung innen)
//    A4 - S9 (Aussentemperatur Dach über Garage)
//    C4,C5,C6,C7 - For future use
// DS18B20 bus line A5 required 10k external pullup to +5VIO. Bus devices:
//    Warmwassertemperatur   wwt {0x28,0x8E,0xD3,0xCD,0x04,0x00,0x00,0xCD}
//    Kaltwassertemperatur  kwt {0x28,0xD8,0xD2,0xCD,0x04,0x00,0x00,0x9C}
//    Zirkulationstemperatur      zit {0x28,0xB0,0x78,0xCE,0x04,0x00,0x00,0xF8}
// Garden water gauge with reed contact (1 on and 1 off transition per liter) connects to C2 - 10k - +5VIO and to GND. The 10k pullup to +5VIO is onboard.
// Warm water gauge with reed contact (1 on and 1 off transition per quarter liter) connects to C3 - 10k - +5VIO and GND, with the pullup onboard as well.
// The main valve is driven by a DRV8833. Connections are D4 - AIN1, D5 - AIN2, NFAULT - B1 (using internal uC pullup), NSLEEP - 10k - +5V onboard. 
//    We use a fixed ISEN resistor of 1R5 and parallel a B0 switchable resistance of 0R5 plus IRLML6244 Rdson of 16m so 0R516 making 0R384.
//    DRV8833 limits current to ISEN of 200mV, so 1R5 gives 133mA to maintain ON state, and 0R384 gives 520mA to switch ON.
//    The ISEN voltage is also connected ISEN - 2k7 - A7 - 100n - GND for software consistency checks.
// CAN connectivity goes via MCP2515 with 8MHz external crystal via SPI (B2 - nINT, B4 - nCS - 10k - +5VIO, B5-MOSI, B6-MISO, B7-SCK, nRST - 10k - +5VIO) and TJA1050.
//    TJA1050 is connected to CL2 and CH2
// We have a 128x32 pixel display and three CAP1203 touch buttons connected to C0-SDA/C1-SCL, each with 2k2 pullups onboard to +5VIO.
// We can monitor the 9V power supply via +9V - 220k - A6 - 10k - GND. The board has a 2200uF buffer cap to react when power supply goes down.
// +5VIO has a orange LED with a 1k resistor limiting current.
// We can also switch off +5VIO using D7. This switches off all external devices (DHT22, DS18B20, MCP2515, TJA1050, CAP1203, Display, Gauge contacts, LED) except the DRV8833.
//
// 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)

TODO

• Bootloader: httpboot-m1284p-8mhz-w5500.c Mar 4 2014 19:20:38
• Software: w5500_optolink_httpboot_09.ino Nov 28 2015 18:17:03
• Pinbelegung

• Adapterboard

• Hardware:
  • LiquidCrystal_I2C Lcd(0x27,16,2)
  • DHT s1(A3) Heizungsraum, s3(12) Hobbyraum, s4(13) Flur, s6(A4) Dachboden, s7(A5) Hallendecke Iso Außenseite, s8(A6) Hallendecke Iso Innenseite, s9(A7) Dachkasten Außen
  • W5500_POWERPIN (1«PINB2), W5500_SS (1«PINB4)
  • Optolink Serial.begin(4800,SERIAL_8E2)
  • Garage Serial1.begin(115200)
  • Kabel Heizung↔DHT Flur: Schwarz→Blau:GND, Rot→BlauWeiss:+5V, Weiss→Braun:S4

• [Kabel T4-CAN-MQTT↔Hobbyraum: Blau:N/A, BlauWeiss:N/A, Braun:N/A, BraunWeiss:N/A, Orange:CANGND, OrangeWeiss:CAN+9V, Grün:CANL, GrünWeiss:CANH]

• Versorgung 9V
• HIAMP 520mA (((1R|1R)+0R016)|1R5), !HIAMP 133mA (1R5)
• [HIAMP 446mA (((1R|1R)+0R016)|3R3), !HIAMP 60mA (3R3)

• D0 (RXD0) - Seriell Debugging
• D1 (TXD0) - Seriell Debugging
• D2 - DRV8833 nFAULT
• D3 - CAN INT
• D4 - CD4067 S0
• D5 - CD4067 S1
• D6 - CD4067 S2
• D7 - CD4067 S3
• D8 (ICP1) - CD4067 COMMON SIG
• D9 - NC
• D10 - NC
• D11 (TXD1) - Optolink YLW TSHF5210 K, A - RED - 330 - 5V [was: Garage ADUM1201 VIA (or VIB?)]
• D12 (RXD1) - 1k - 5V, D12 - Optolink GRN - TEKT5400S-ASZ C, E - BLK - GND [was: Garage ADUM1201 VOB (or VOA?)]
• D13 - DRV8833 HIAMP IRLML6244 G, S - GND, D - 0R5(1R|1R) - AISEN/BISEN - 1R5 - GND
• D14/A0 - CAN MISO1
• D15/A1 - CAN SCK1
• D16/A2 - DRV8833 IN1
• D17/A3 - DRV8833 IN2
• D18/A4 - 4k7|6k8 - DRV8833 AISEN/BISEN, D18/A4 - 100n - GND
• D19/A5 - 10k - 5V, D19/A5 - Water GRN, Water BLU - GND
• D20/A6 - CAN CS
• D21/A7 - CAN MOSI1
• D22 (SDA1) - 2k2 - 5V
• D23 (SCL1) - 2k2 - 5V
• DRV8833 nSLEEP - 10k - 5V

• CD4067 C0 - Öltank YLW HC-SR04 TRIGGER, C0 - 1k - WHT ECHO, RED - 5V, BLK - GND
• CD4067 C1 - S1 (Heizraum über Wassertank)
• CD4067 C2 - S4 (Flur)
• CD4067 C3 - S6 (Dachboden)
• CD4067 C4 - S7 (Hallenisolierung aussen)
• CD4067 C5 - S8 (Hallenisolierung innen)
• CD4067 C6 - S9 (Aussentemperatur Dach über Garage)

Alter Jumper

• P0 - D0
• P1 - D1
• P2 - D12
• P3 - D11
• P4 - D19
• P5 - CD4067 C2 (S4)
• P6 - (ECHO) - 1k - P7
• P7 - CD 4067 C0 (TRIGGER)
• P8 - CD 4067 C1 (S1)
• P9 - CD 4067 C3 (S6)
• P10 - CD 4067 C4 (S7)
• P11 - CD 4067 C5 (S8)
• P12 - CD 4067 C6 (S9)
• P13 - D19
• P14 - D22
• P15 - D23

• PA - 5VB
• PB - 5V
• PC - GND
• PD - [RST]