The LGT8F328P Mini EVB Module (BTE17-14) is a compact development board built around the LogicGreen LGT8F328P microcontroller, designed as an enhanced alternative to the classic Arduino Pro Mini and ATmega328P platform. It retains the familiar Pro Mini form factor and pin layout while delivering significant performance and peripheral upgrades.
At the heart of the board is the LGT8F328P, a high-performance 8-bit RISC microcontroller that runs at up to 32 MHz — double the clock speed of the standard ATmega328P . It maintains 99% compatibility with the ATmega328P architecture, meaning existing Arduino code and libraries generally work without modification . The chip integrates 32 KB Flash, 2 KB SRAM, and configurable EEPROM (0/1/2/4/8 KB, emulated from Flash) .
The LGT8F328P brings several features that are not available on the standard ATmega328P. It includes a 12-bit ADC with up to 8 analog channels (compared to the 10-bit ADC on the ATmega328P), providing 4× finer resolution for analog sensor readings . A 1-channel 8-bit DAC enables true analog output without external components . The chip also features a computing accelerator (DSC) that speeds up integer operations, and 6 high-current push-pull I/O pins capable of driving up to 80 mA each — strong enough to directly drive LEDs and small loads without transistors .
For communication and control, the board provides UART, SPI, and I2C interfaces, along with 8 PWM channels and 4 configurable power pins . An internal 1.024V/2.048V/4.096V reference with ±0.5% accuracy ensures stable analog measurements . The chip also includes a unique global device ID (GUID) for program encryption and device identification .
This BTE17-14 version operates at 3.3V logic level and supports programming via UART or SWD interface . The board follows the Arduino Pro Mini form factor, making it suitable for space-constrained projects where the Pro Mini was traditionally used.
Development is fully supported through the Arduino IDE with the lgt8fx board package (available via the dbuezas/lgt8fx GitHub repository) . Once installed, you can select the “LGT8F328P-LQFP32 MiniEVB” board type and program the module just like any Arduino board.
Whether you are upgrading from an ATmega328P project, building a compact sensor node, or exploring a low-cost 32MHz microcontroller with enhanced analog capabilities, the LGT8F328P Mini EVB Module offers a compelling balance of performance, compatibility, and value.
Features
-
LGT8F328P microcontroller @ 32 MHz — Double the clock speed of the ATmega328P with 99% compatibility .
-
12-bit ADC (8 channels) — 4× finer analog resolution than the ATmega328P’s 10-bit ADC .
-
8-bit DAC output — True analog output capability without external components .
-
High-current I/O pins (up to 80 mA) — 4 pins configurable as power outputs for direct LED and load driving .
-
Arduino Pro Mini form factor — Pin-compatible layout for existing Pro Mini projects and accessories .
-
Computing accelerator (DSC) — Hardware integer operation accelerator for faster code execution .
-
Internal precision reference — 1.024V/2.048V/4.096V ±0.5% for stable analog measurements .
-
Unique chip ID (GUID) — Global device number for program encryption and identification .
-
UART and SWD programming — Flexible programming and debugging options .
-
3.3V operating voltage — Suitable for low-power and 3.3V sensor applications .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | Microcontroller | LGT8F328P (8-bit RISC, ATmega328P-compatible) |
| 2 | Maximum Clock Speed | 32 MHz |
| 3 | Flash / SRAM | 32 KB / 2 KB |
| 4 | EEPROM | Configurable 0/1/2/4/8 KB (emulated from Flash) |
| 5 | ADC / DAC | 12-bit ADC (8 channels) / 8-bit DAC (1 channel) |
| 6 | GPIO Count | 24 pins (4 configurable as high-current outputs) |
| 7 | Operating Voltage | 1.8V – 5.5V (3.3V logic level) |
| 8 | Programming Interfaces | UART, SWD |
