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Hardware overview

Status: main board confirmed on raptox's unit (2026-11-01); power board still from FCC photos (2018 sample, POWER_REV01). Confidence labels follow components.md. Nothing has been measured electrically yet.

Mechanical layout

  • The head holds the main board on the back of the front bezel, facing the user through a light guide and a black glass cover. See assembly.
  • The power board stands vertically inside the head/tube. Its long PCB finger reaches down into the stainless tube, probably carrying the water-temperature sensor.
  • A 30-way white FFC ribbon connects main board J8 to power board J8.
  • Other wiring in the head:
  • a yellow/black pair from main J9 into the housing
  • protective earth (green/yellow, blue crimp splice)
  • white high-temperature wires (heater/mains, probable)

Block diagram (provisional)

flowchart LR
  subgraph PWR["Power board ANOVA_PRO_POWER_REV01"]
    AC["AC mains in<br/>L/N tabs + main fuse"] --> SMPS["AC/DC flyback module<br/>F1 T2A/250V"]
    AC --> RLY["Heater relay"]
    RLY --> HEAT["Heater element<br/>(1200 W at 120 V, FCC sample;<br/>EU rating not yet read)"]
    SMPS --> BUCK["DC/DC buck<br/>L1 6.8 uH"]
    ICS["Unidentified ICs<br/>U2, U3?, U10, U11, U5<br/>(MCU? AFE? drivers?)"]
    TEMP["Sensor finger<br/>R57 at tip (NTC?)"] --> ICS
    ICS --> RLY
    PUMP["Pump motor<br/>(wire terminals)"]
    ICS --> PUMP
  end
  subgraph MAIN["Main board ANOVA_PRO_MAIN_V2.0"]
    WIFI["U1 TI CC3220S<br/>Wi-Fi MCU"] --- FLASH["U15/U16 XMC XM25QH64A<br/>8 MiB SPI NOR"]
    BLE["TI CC2640R2F<br/>BLE MCU"]
    UI["About 135 LEDs (3x4 digits)<br/>6 touch keys, U18 sensor"]
    U14["U14 T3018 QFN-40<br/>(LED / touch driver?)"] --- UI
    U13["U13 4637 QFN-20<br/>(audio?)"] --- SPK["Speaker (J9)"]
    DBG["Debug: J29 (1x3), J37/J38,<br/>J14 DIP pads, TPs"]
  end
  PWR == "30-way FFC J8 to J8" ==> MAIN
  WIFI -. "UART/SPI? (TBD)" .- BLE

Which MCU runs the UI and the cooking control loop, and how the CC3220S and CC2640R2F talk to each other, is unknown. These are the main questions for Phase 1/2.

Radios (from FCC test reports)

Radio Chip Standard Antenna Conducted power
Wi-Fi 2.4 GHz CC3220S 802.11b/g/n HT20, ch 1-11 PCB antenna, 2.45 dBi 32.4 mW (grant)
Bluetooth LE CC2640R2F BLE 4.2, 1 Mbps GFSK PCB antenna, 2.21 dBi 3.5 mW (grant)

The FCC sample was AN600-10, rated AC 120 V / 60 Hz, 1200 W. Samples were received 2018-08-01.

Boards

Board Photos Doc
Main ANOVA_PRO_MAIN_V2.0 raptox's unit: component side · FCC: component side, LED side main-board.md
Power ANOVA_PRO_POWER_REV01 FCC: top, bottom power-board.md
Front bezel / light guide FCC: back view main-board.md (LED / touch side)

Biggest open questions

  1. ~~Does raptox's AN600-20 use the same board revisions?~~ Main board: same layout, debug parts not fitted. Power board: not checked yet.
  2. Which chip(s) did the failed OTA update target: CC3220S app, CC3220 service pack, CC2640R2F, or a power-board MCU?
  3. Is there an MCU on the power board (U2 is the candidate)?
  4. What is the pinout of the J8 FFC and the debug footprints (J29, J37, J38), and what do the J14 DIP pads connect to?
  5. What are U14 (T3018), U13 (4637) and U17?
  6. Which logic rails exist (3.3 V? 1.8 V?) and are they present on the dead unit?