Computation and Display
AssemblyMicroprocessor computes ground resistance R = V / I; displays resistance in ohms and trending over time. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Computation and Display parts and their functions
4 top-level parts · 6 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | ARM Cortex-M3 Microcontroller | 1× | 32-bit ARM Cortex-M3, 72 MHz |
| 2 | 3.5-Digit LCD Display | 1× | 3.5 digit LCD, 0.6 inch characters |
| 3 | Control Button | 3× | Frequency select, measurement start, data hold buttons |
| 4 | Flash Memory | 1× | 64 kB flash for measurement logging |
3D model
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Build & assembly graph
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Bill of materials for Computation and Display
4 top-level lines · 4 rows shown · 6 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | ARM Cortex-M3 Microcontroller | earth-ground-tester-mcu | 1× | 1 | · | part |
| 2 | 3.5-Digit LCD Display | earth-ground-tester-lcd-display | 1× | 1 | · | part |
| 3 | Control Button | earth-ground-tester-buttons | 3× | 3 | · | part |
| 4 | Flash Memory | earth-ground-tester-memory | 1× | 1 | · | part |
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Where the computation and 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 |