UHF Reader Based on Pico W / ESP32

Introducing the UHF Reader, the rapid Read/Write multi-tag reading device that revolutionizes your inventory management. With a range of up to 1.5 meters and the ability to read 50 tags in just 50 seconds, the UHF Reader is the ultimate solution for efficient and effective inventory management.

Designed with cutting-edge UHF technology, this reader is capable of capturing and processing vast amounts of data from RFID tags, allowing you to accurately and quickly identify your inventory items, streamline your operations, and boost your productivity. 

Whether managing a large warehouse, retail store, or any other business with high-volume inventory, the UHF Reader will simplify your work, save you time and money, and improve your overall performance.

The UHF Reader is ideal for a wide range of industries and applications, including Warehousing and logistics, Retail, Manufacturing, etc.

The device is compact, portable, and easy to use, with a user-friendly interface that requires minimal training. Its rugged construction and reliable performance make it a durable and dependable choice for any business, and its compatibility with most existing RFID tags means you can start using it immediately.

Don't waste any more time manually tracking your inventory. Invest in the UHF Reader today and take your business to the next level.

Features:

Pico Variant:

• UHF Reader for Pico Powered by Pico W 
• Onboard High-performance UHF RFID reader module
• 24 hours x 365 days’ work normally
• 1.14” TFT display for visual interaction
• Multi-tone Buzzer onboard for Audio alerts
• Micro USB for programming and Type C for power.
• Drag-and-drop programming using mass storage over USB
• Onboard 3 user programmable buttons and reset button
• SD card slot for storage and data transfer
• Battery power and charging circuit for portable use
• Status LED for Power and Battery charging available
• Multipurpose GPIOs breakout for interfacing external peripherals
• SWD pins breakout for serial debugging 
• Compatible with Micropython, circuitpython, and Arduino for programming.

ESP32 Variant:

• UHF Reader for ESP32 is powered by ESP32 S3 WROOM - 1
• Onboard High-performance UHF RFID reader module
• 24 hours x 365 days’ work normally
• 1.14” TFT display for visual interaction
• Multi-tone Buzzer onboard for Audio alerts
• Type C interface for programming and power 
• Onboard 2 user programmable buttons, Boot and Reset button
• SD card slot for storage and data transfer
• Battery power and charging circuit for portable use
• Status LED for Power and Battery charging available
• Multipurpose GPIOs breakout for interfacing external peripherals
• Arduino and Espressif IDF platform support for programming.

Specifications:

Pico W Based:

• RP2040 microcontroller is a dual-core Arm Cortex-M0+ processor, with 2MB of onboard flash storage, 264kB of RAM with WiFi and BLE support.

ESP32 Based:

• ESP32-S3 series of SoCs having Xtensa® dual-core 32-bit LX7 microprocessor, 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth® 5 (LE), Flash up to 16 MB, PSRAM up to 8 MB 

• The operating voltage of pins 3.3V and board supply 5V
• Display resolution 240 × 135 pixels
• ST7789 display driver
• UHF Module: Frequency Range:
• EU/UK: 865.1-867.9 MHz
• US: 902.25-927.75 MHz
• UHF Module Type: Read/Write.
• Protocols Supported: EPCglobal UHF Class 1 Gen 2 / ISO 18000-6C
• Onboard Antenna
• Reading Distance: 1-1.5 meters depending on tags
• Can identify over 50 tags simultaneously
• Communication interface: TTL UART Interface for UHF
• Communication baud rate: 115200 bps（default and recommend) - 38400bps
• Operation current: 180mA @ 3.5V (26 dBm Output，25°C), 110mA @ 3.5V (18 dBm Output，25°C)
• Working humidity < 95% (+ 25 °C)
• Heat-dissipating method Air cooling(no need out install cooling fin）
• Tags storage capacity: 200pcs tags @ 96 bit EPC
• Output power: 18-26 dBm
• Output power accuracy: +/- 1dB
• Tags RSSI: support

Pinout: 

Pico W variant:

(1) 1.14” Display
(2) UHF module
(3) Pico W
(4), (6) & (11) programmable button
(5) & (10) GPIOs Breakout with Power Pins
(7) Buzzer
(8) TF card slot
(9) Reset Button
(12) Type C
(13) Battery Connector

ESP32 variant:

(1) 1.14” Display
(2) UHF module
(3) Type C
(4) & (6) programmable button
(5) & (10) GPIOs Breakout with Power Pins
(7) Buzzer
(8) ESP32 S3 Wroom -1
(9) Boot Button
(11) Reset Button
(12) Battery Connector
(13) TF card slot

Dimension:

Pico W variant

ESP32 variant:

Applications:

• Warehousing and logistics: use the UHF Reader to track inventory in large warehouses, distribution centers, and logistics facilities.
• Retail: the device can help retailers keep track of stock levels, monitor inventory movement, and reduce the risk of stock-outs.
• Manufacturing: use the UHF Reader to track work-in-progress inventory and monitor production processes.
• Healthcare: The UHF Reader can be used in healthcare facilities to track medical equipment, supplies, and assets.
• Educational and Learning Purposes

Resources:

UHF reader for Pico W:

Software GitHub: Getting Started Guide

Hardware GitHub: Hardware Design files like Schematic, Step and 3D

UHF reader for ESP32:

Software GitHub: Getting Started Guide

Hardware GitHub: Hardware Design files like Schematic, Step and 3D

Datasheet: 

• RP2040
• ESP32 S3 WROOM-1