Description
The Hook Scale weighing controller is designed for farms, livestock weighing, vegetable markets, warehouse handling, and light crane-scale applications.
It is a portable battery-powered product that can use the same ESP32 scale firmware base as the compact and multiport models, while keeping hardware options suitable for field use and long-distance display/printer operation.
Hardware Highlights
- ESP32 controller
- High-accuracy Texas 20 bit ADC for load cell measurement
- 6-digit 7-segment LED display using TM1637-style driver
- External display support for long-distance visibility
- TTL UART at 3.3V logic
- Bluetooth communication using BLE or Classic SPP firmware variant
- Optional Wi-Fi firmware variant for web configuration and socket data
- Thermal printer support through UART/printer mode
- 7.4V Li-ion / 6V lead-acid battery support
- 9V to 12V DC input or solar charging compatible hardware option
- Low-power operation for field use
Firmware Features
- Weight, liter, piece counting, and auto scale modes
- Multi-level accuracy settings
- Continuous, stable, stable-zero, key-triggered, or disabled data protocol
- BLE mode & Classic Bluetooth SPP mode
- Embedded web configuration page served
- mDNS device-name access in Wi-Fi mode
- TCP/UDP tranport and server / client socket modes
- Auto reconnect
- Thermal Printer Support
- Lock-pin protected calibration and sensitive setup fields
- Low-battery standby with automatic recovery when battery becomes healthy
Printer And Billing Use
- Printer mode is intended for Bluetooth or socket-based print commands.
- When printer mode is enabled, incoming BLE, Classic Bluetooth, TCP, or UDP data is forwarded directly to UART for the printer or external serial device.
- Normal UART weight output is suppressed while printer mode is active.
- Scale data can still be sent through the active wireless transport.
Applications
- Livestock weighing for goats, sheep, poultry, and farm animals
- Farm produce weighing for vegetables, grains, and agricultural goods
- Vegetable markets, wholesale yards, and farm-gate sales
- Portable field weighing and rural weighing systems
- Hook scale and light crane-scale systems
- Warehouse, logistics, and material handling
- Bluetooth or Wi-Fi connected billing and printer-based weighing systems
