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RC522 – RFID Reader / Writer 13.56MHz with Cards

$ 3.17

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The MF RC522 is a highly integrated transmission module designed for contactless communication at a frequency of 13.56 MHz. It supports ISO 14443A/MIFARE mode, allowing for flexible applications. The RC522 RFID reader features an exceptional modulation and demodulation algorithm that facilitates seamless RF communication at this frequency. Using S50 RFID cards simplifies the process of incorporating 13.56 MHz RF communication into your projects. The RC522 module communicates with microcontrollers via SPI (Serial Peripheral Interface). Additionally, the open-source hardware community has developed numerous projects that utilize the RC522 for RFID communication, particularly with Arduino. RC522 – RFID Reader / Writer Features: Integrated MF RC522 13.56MHz contactless communication card chip. The low-voltage, low-cost, small size of the non-contact card chip to read and write. Suitable for Smart meters and portable handheld devices. Advanced modulation and demodulation concept completely integrated in all types of 13.56MHz passive contactless communication methods and protocols. 14443A compatible transponder signals. ISO14443A frames and error detection. Supports rapid CRYPTO1 encryption algorithm, terminology validation MIFARE products. MFRC522 support MIFARE series of high-speed non-contact communication, two-way data transmission rate up to 424kbit/s. Low cost, and ideal for user equipment development. The reader and RF card terminal design meets advanced applications development and production needs. Can be directly loaded into the various reader molds, very convenient. Technical Specifications: Operating Current :13-26mA / DC 3.3V Idle Current :10-13mA / DC 3.3V Sleep Current: < 80uA Peak Current: < 30mA Operating Frequency: 13.56MHz Supported card types: mifare1 S50, mifare1 S70 MIFARE Ultralight, mifare Pro, MIFARE DESFire Environmental Operating Temperature: -20 – 80 degrees Celsius Environmental Storage Temperature: -40 – 85 degrees Celsius Relative humidity: relative humidity 5% – 95% Reader Distance: ≥ 50mm / 1.95″ (mifare 1) Module Size: 40mm × 60mm Module interface: SPI Data transfer rate: Maximum 10Mbit/s RC522 – RFID Reader / Writer Package: 1x  A RFID-RC522 Module 1x The Standard S50 Blank Card 1x S50 special-shaped card (as shown by the keyring shape) 1x Straight Pin 1x Curved Pin

Planting & Care

At a Glance – 3-in-1 Combination Peach Tree

  • Sun: 1/2 day to full day of sun
  • Soil: Well-drained, moderately fertile soil
  • Water: Keep evenly moist during establishment
  • Rootstock: Semi-dwarf (Lovell)
  • Size: 12–15 ft at maturity
  • Pollination: Self-fertile
  • Harvest: July–September
  • Hardiness: USDA Zone 5–9

Planting & Care – 3-in-1 Combination Peach Tree

Site Selection

  • Choose a location with excellent sunlight to ensure full sweetness and color.
  • Good airflow reduces fungal pressure, especially in humid or coastal climates.

Soil Preparation

  • Prefers well-drained loam or sandy loam; avoid clay-heavy or waterlogged soil.
  • Add compost to improve drainage and fertility.
  • Ideal soil pH: 6.0–7.0.

Planting Instructions

  1. Plant at the same depth as in the nursery pot.
  2. Water deeply and mulch with 2–3 inches of organic matter.
  3. Keep mulch a few inches away from the trunk.

Watering & Fertilizing

  • Maintain consistent moisture during the first 1–2 years.
  • Deep water 1–2 times per week in heat or drought.
  • Peaches are medium feeders—use a balanced organic fertilizer in early spring if growth appears weak.
  • Avoid overfertilization, which reduces fruit quality and increases disease risk.

Pruning & Graft Management

  • Prune more vigorously growing grafts to maintain balance across the tree.
  • Encourage an open center to improve light penetration.
  • Thin fruit clusters to improve size and prevent limb damage.

Harvest & Use

  • Frost offers classic peach flavor with strong leaf curl resistance.
  • Salish Summer (Q-1-8) produces juicy, richly flavored fruit well-suited to cooler climates.
  • Indian Free provides brilliant red flesh and outstanding complexity.
  • Muir delivers exceptionally sweet, aromatic fruit.

General Tips

  • Combination peach trees thrive when graft vigor is balanced yearly through pruning.
  • Renew mulch annually and water consistently for best fruit quality.
  • Leaf curl–resistant varieties reduce the need for sprays in many climates.

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