Control & Display
AssemblyMicrocontroller managing roast temperature, drum speed, and cycle timing with LCD feedback. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Control & Display parts and their functions
8 top-level parts · 15 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Main Control PCB | 1× | MCU-based board running PID control loop regulating heater and drum speed. |
| 2 | RTD Temperature Probe | 1× | Pt100 RTD inserted into drum chamber measuring bean temperature real-time. |
| 3 | 16x2 LCD Display | 1× | Display showing current temperature, target, elapsed time, and roast stage. |
| 4 | Start Button | 1× | Momentary push starting the roast cycle. |
| 5 | Roast Profile Switch | 1× | Three-position selector: light, medium, or dark roast preset curve. |
| 6 | Relay | 3× | Electromechanical switch in which a small coil current closes or opens contacts rated for a much larger load, isolating control circuits from what they switch. |
| 7 | Microcontroller | 1× | Single-chip microcontroller combining a processor core, flash memory, RAM, and peripherals such as timers, ADCs, and serial ports to run the device's control firmware. |
| 8 | Connector | 6× | Mating plug-and-socket pair that joins two lengths of wiring or a cable to a board so a circuit can be assembled, serviced, and separated without soldering. |
3D model
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Build & assembly graph
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Bill of materials for Control & Display
8 top-level lines · 8 rows shown · 15 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Main Control PCB | home-coffee-roaster-control-board | 1× | 1 | · | part |
| 2 | RTD Temperature Probe | home-coffee-roaster-temp-probe | 1× | 1 | · | part |
| 3 | 16x2 LCD Display | home-coffee-roaster-lcd-display | 1× | 1 | · | part |
| 4 | Start Button | home-coffee-roaster-start-button | 1× | 1 | · | part |
| 5 | Roast Profile Switch | home-coffee-roaster-mode-switch | 1× | 1 | · | part |
| 6 | Relay | relay | 3× | 3 | · | part |
| 7 | Microcontroller | mcu | 1× | 1 | · | part |
| 8 | Connector | connector | 6× | 6 | · | part |
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Where the control & display is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $3–$400. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
|
🇨🇳BOE
boe.com ↗
|
Beijing, CN | Display panels | 1,000 pcs | 6–10 wks |
|
🇨🇳Tianma
tianma.com ↗
|
Shenzhen, CN | Display panels | 1,000 pcs | 6–10 wks |
|
🇨🇳TCL CSOT
szcsot.com ↗
|
Shenzhen, CN | Display panels | 1,000 pcs | 6–10 wks |
| truly.net ↗ | Shanwei, CN | Displays & camera modules | 1,000 pcs | 6–10 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |