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| Parameter Category | Item | Specification Details |
|---|---|---|
| Basic Parameters | Module Model | Metal Detector Module (A058). Applied to simple treasure hunting, production line metal foreign object inspection, DIY security inspection equipment and other scenarios |
| Basic Parameters | PCB Outline Dimension | 98.00mm × 80.00mm. Rectangular board fits housing encapsulation and flat mounting |
| Basic Parameters | Induction Coil | PCB integrated circular multi-layer coil, coil diameter approx. 80mm. Multi-layer wiring enhances induction magnetic field and expands detection range |
| Basic Parameters | Detection Principle | Electromagnetic induction metal detection. Approaching metal changes coil resonance parameters; circuit captures variations and outputs detection signals |
| Basic Parameters | Typical Detection Distance | Coin: 1~3cm; Metal screw: 2~5cm. Detection distance varies with metal volume and material; larger ferrous metals achieve longer detection range |
| Basic Parameters | Output Signal | Dual output: DOUT digital level signal + PULSE pulse signal. Two signals optional for connection with main controller |
| Basic Parameters | Supply Voltage | 3.3V~5V DC, 5V recommended. Compatible with mainstream MCU power supply systems, works with development boards and lithium batteries |
| Basic Parameters | On-board Hardware | PWR power indicator, CN1 4-pin signal output socket. Power status and wiring status can be visually checked |
| Basic Parameters | Product Weight | Bare PCB: approx.18g; Finished module with coil & components soldered: approx.30g. Mass production weight tolerance ±2g, suitable for portable equipment assembly |
| CN1 Interface Pin Definition | VCC | Positive power input, connect 5V/3.3V. Supplies power for coil resonance circuit, signal processing circuit and indicators |
| CN1 Interface Pin Definition | GND | Negative power input. Must share ground with MCU to unify voltage reference and prevent signal drift caused by ground potential interference |
| CN1 Interface Pin Definition | DOUT | Digital detection output. Level flips when metal approaches. Readable via general MCU IO port for simple metal presence judgment, easy programming |
| CN1 Interface Pin Definition | PULSE | Frequency pulse output. Collect frequency variation to improve anti-interference capability; judge metal size and distance via frequency value |
| Core Feature - Integrated PCB Coil | Coil etched inside PCB. No external winding required, compact, stable structure, resistant to deformation and wire shedding | Eliminates manual winding process, high coil consistency. No coil displacement under long-term vibration & transportation, stable detection performance |
| Core Feature - Dual Signal Output | Digital DOUT for fast metal detection; PULSE pulse frequency for precise identification, adapts to harsh interference environments | Use DOUT for rapid detection in simple scenarios; collect PULSE frequency for estimating metal size & distance under heavy electromagnetic interference, meets diverse development demands |
| Core Feature - Low Power Static Design | Low standby current, suitable for battery-powered portable detection devices | Supports long-time operation with dry batteries or mobile lithium batteries, ideal for handheld portable metal detectors |
| Core Feature - Reserved Mounting Holes | PCB pre-drilled mounting holes, can be fixed to housing or equipment panel with screws for easy DIY system integration | Can be secured inside equipment enclosure directly with screws, compatible with handheld detectors, production line brackets and various mounting structures |
| Packaging Option | Optional Packages | ① Anti-static soft bag ② White hanging-hole card box ③ Kraft paper box |
