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Development

ESP32-S3-WROOM-1 Wi-Fi and Bluetooth LE Evaluation Board

The Boardoza B-ESP32-S3-EVAL is an evaluation board designed for developing wireless embedded systems and prototypes with the ESP32-S3-WROOM-1 module. In addition to the ESP32-S3’s Wi-Fi and Bluetooth LE capabilities, the board has two USB-C connections: J4 connects to the module’s USB lines, while J5 provides a UART serial connection through the CH340G. The board can be powered through USB, its 18650 battery holder, or the appropriate power header pins. The PAM2310 regulator (U1) provides the 3.3 V rail; U4 charges a single-cell Li-ion battery from USB, while U3 provides battery protection. Switch SW1 connects or disconnects the battery from the board’s power path. Headers J1, J2, and J3 provide access to GPIOs and power rails, while the BOOT and RESET buttons make development more convenient. The board is suitable for a range of development projects, from wireless applications to USB/UART communication and battery-powered prototypes.

RF Communication

LSF0204D Bidirectional Logic Level Translator Breakout Board

This board is a 4-channel bidirectional voltage level translator based on the LSF0204DPWR. It is designed to enable safe and reliable digital communication between systems operating at different logic voltage domains. The circuit uses two independent reference voltages: V_LOW (Vref_A) and V_HIGH (Vref_B). V_LOW defines the logic HIGH level of the low-voltage domain (e.g., 1.8V / 3.3V MCU systems), while V_HIGH defines the logic HIGH level of the high-voltage domain (e.g., 3.3V / 5V systems). This allows direct interfacing between devices with different logic levels. The device is based on a passive NMOS architecture, which only actively transfers the LOW state. HIGH levels are defined by external pull-up resistors on both sides, resulting in an open-drain-like behavior. The integrated auto-direction sensing eliminates the need for an external direction control pin. The EN pin enables or disables the device; when driven LOW, all channels enter a high-impedance (Hi-Z) state, effectively isolating both voltage domains. Signal performance is dependent on the pull-up resistor values and line capacitance, forming an RC time constant that determines rise time. This module is particularly suitable for I²C, GPIO, and other low-to-medium speed digital interfaces. It also includes onboard pull-up resistors and power indicator LEDs for improved usability and system debugging.

Sensors

ZMOD4510 Outdoor Air Quality Sensor Breakout Board

Boardoza ZMOD4510 is a high-precision digital gas sensor module. It is designed to monitor outdoor air quality, especially harmful gas pollutants. This board can selectively measure Nitrogen Dioxide (NO₂) and Ozone (O₃) concentrations in the air. Use a 5V DC board supply so the onboard regulator can provide a regulated 3.3V sensor rail. Operation from a 3.3V board input is not specified here. However, thanks to the integrated logic level shifter, the communication lines (SDA, SCL) can safely talk directly with both 3.3V and 5V microcontrollers (like Arduino, ESP32, STM32, Raspberry Pi, etc.) without any extra converter boards. It offers Air Quality Index (AQI) outputs that match international standards. This makes it a perfect solution for smart city projects, weather stations, and building automation systems.

Sensors

INA3221 Three-Channel Current and Bus Voltage Monitor Breakout Board

Boardoza INA3221-BRK is a high-precision measurement module. It can monitor the current and bus voltage of up to 3 independent power lines at the same time on a single compact board. To get the best power resistance and thermal stability, the board uses 3mΩ special alloy shunt resistors. These resistors have a high accuracy of ±%2 and a power capacity of 4W. With this hardware, you can safely measure up to 36A per channel. When combined with the 40uV shunt voltage step of the INA3221 chip, it gives a minimum current resolution of exactly 13.33mA. Also, the 13-bit ADC structure of the module offers a bus voltage step of 8mV per bit for stable, bidirectional power tracking. The board communicates directly via an I2C interface. It is an ideal solution for Battery Management Systems (BMS), servers and industrial power panels.

Power Management

AQY284EHAZ 4-Channel PhotoMOS Solid-State Relay Breakout Board

This board is a 4-channel Solid State Relay (SSR) module built with the AQY284EHAZ PhotoMOS® relay. It supports 3.3V to 24V control input and is capable of switching both AC and DC loads. With fast, silent, and reliable operation, it is well-suited for automation, industrial control, and low-noise electronic systems.

Sensors

LSM6DSL Six-Axis IMU Breakout Board

The LSM6DSL is a high-performance 6-axis inertial measurement unit (IMU) that integrates a 3-axis accelerometer and a 3-axis gyroscope in a compact package. It delivers accurate motion sensing with low power consumption, making it well-suited for smartphones, wearables, IoT devices, and industrial applications. With built-in motion detection, step counting, and activity recognition features, the LSM6DSL reduces the processing load on the host MCU while enabling advanced motion tracking.

Sensors

TCS37013M RGB Color, Ambient Light and Proximity Sensor Breakout Board

The TCS37013M, an ordering variant of the TCS3701 sensor, is an ultra-high-precision RGB and ambient light sensor designed specifically for OLED backlight applications, providing accurate measurements of color temperature (CCT) and light intensity. The TPS65000 regulator integrated within the board provides a wide input voltage range of 3.3 V to 6 V for the TCS3701 sensor, which operates internally at 1.8 V, ensuring full compatibility with various systems. Its high dynamic range and low-noise power management make the board ideal for smartphone brightness control, wearable devices, and low-light IoT environments. All data is accessible via a single I2C bus, enabling rapid prototyping and seamless integration into professional hardware projects.

Data Converters

TPC2192 8-Channel 12-Bit DAC Breakout Board

Boardoza TPC2192 BRK is a compact breakout board built around the 3Peak TPC2192 8-channel, 12-bit Digital-to-Analog Converter (DAC) integrated circuit. The module delivers a rapid 6 µs output settling time and supports high-speed 4-wire SPI communication up to 20 MHz (SDI, SDO/ALRM, SCLK, nCS). Voltage reference selection is flexible: it can utilize the chip's integrated low-drift 2.5V internal reference or accept an external reference voltage from the REF pin, with software-configurable full-scale output gain options of 1/2, 1, or 2. The board features a digital I/O voltage rail (VIO) that is connected to VDD over JP1 by default. Opening JP1 separates VIO from VDD voltage, allowing it to be driven by an independent power rail (1.7V \~5.5V). The Boardoza TPC2192 BRK is widely used in industrial automation, optical networking, data acquisition systems, multi-channel sensor calibration, and automated test equipment (ATE).

Power Management

BQ40Z50 4S1P Battery Management Board

The Boardoza BQ40Z50 4S1P Battery Management Board is a project intended for exploring the BQ40Z50 4S1P battery-management variant within power-system development. The board is currently under development, with its design and documentation being finalized. Detailed electrical specifications and integration requirements remain subject to completion of this work.

RF Communication

RFM90CW ESP32-S3 868 MHz LoRa Gateway Evaluation Board

Boardoza Gateway is a compact LoRa gateway board based on the ESP32-S3-Mini microcontroller. It manages system control, data processing, and communication while interfacing with an 868 MHz LoRa transceiver for long-range wireless connectivity. Designed to act as a gateway, the board receives data from remote LoRa nodes and forwards it through standard digital interfaces. SPI, I2C, and UART connections provide flexible integration with external modules, sensors, and host systems, making it suitable for IoT gateway, data aggregation, and telemetry applications.

Development

ESP32-H2 Evaluation Board

The Boardoza ESP32-H2 Evaluation Board is a project intended for exploring an ESP32-H2 platform in an evaluation-board project for embedded application development. The board is currently under development, with its design and documentation being finalized. Detailed electrical specifications and integration requirements remain subject to completion of this work.

Power Management

SPX1117 ADJ Adjustable LDO Regulator Breakout Board

This board is designed as an adjustable power module using the SPX1117M3-L/TR low-dropout (LDO) linear regulator. The default output voltage is configured as 5V. Additionally, 1.8V and 3.3V output levels can be selected through the resistor divider connected to the SPX1117 ADJ pin. The SPX1117 supports up to 800 mA output current and features a typical 1.1 V dropout voltage, making it suitable for applications requiring a low input-to-output voltage difference. The board includes input and output capacitors as recommended by the manufacturer to ensure regulator stability. The desired output voltage configuration is selected using the dedicated jumper/pad, allowing the board to be easily adapted to different system voltage requirements.

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