Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

series is an industrial-grade general-purpose microcontroller designed based on QingKe RISC-V2A core, which supports 48MHz system main frequency in the product function. The series features wide voltage, single-wire serial debug interface, low-power consumption and ultra-small package. It provides commonly used peripheral functions, built-in 1 group of DMA controller, 1 group of 10-bit analog-to-digital conversion ADC, 1 group of op-amp comparator, multiple timers, standard communication interfaces such as USART, I2C, SPI, etc. The rated operating voltage of the product is 3.3V or 5V, and the operating temperature range is -40℃～85℃ industrial- grade.

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

This tiny board is an easy way to use Toshiba’s TB6612FNG dual motor driver, which can independently control two bidirectional DC motors or one bipolar stepper motor. A recommended motor voltage of 4.5 V to 13.5 V and peak current output of 3 A per channel (1 A continuous) make this a great motor driver for low-power motors. #Module #Motor-Driver #TB6612FNG

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

10A MPPT Solar Charge Controller with dual USB ports using Low-power 32bit ARMCortex-M0+ MCU (STM32L072). Expandable via Olimex Universal Extension Connector (UEXT) featuring I2C

Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

10A MPPT Solar Charge Controller with dual USB ports using Low-power 32bit ARMCortex-M0+ MCU (STM32L072). Expandable via Olimex Universal Extension Connector (UEXT) featuring I2C

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

10A MPPT Solar Charge Controller with dual USB ports using Low-power 32bit ARMCortex-M0+ MCU (STM32L072). Expandable via Olimex Universal Extension Connector (UEXT) featuring I2C

10A MPPT Solar Charge Controller with dual USB ports using Low-power 32bit ARMCortex-M0+ MCU (STM32L072). Expandable via Olimex Universal Extension Connector (UEXT) featuring I2C

Ultra Low-Power Energy Harvester based on BQ25504 tuned for LiFePO4 battery (VBAT_OV = 3.6V) with terminal block connectors #template #solar

Seeed Studio XIAO ESP32C6 is powered by the highly-integrated ESP32-C6 SoC, built on two 32-bit RISC-V processors, with a high-performance (HP) processor with running up to 160 MHz, and a low-power (LP) 32-bit RISC-V processor, which can be clocked up to 20 MHz. There are 512KB SRAM and 4 MB Flash on the chip, allowing for more programming space, and binging more possibilities to the IoT control scenarios.

Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Solar-powered autonomous development board that allows you to grow your project from a small seed to a big, beautiful flower. AAA(10440) LiFePO4 battery as energy storage. BQ25504 Ultra Low-Power Energy Harvester

Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14

Bankcard size(85x55mm) low-power solar harvester development board on STM8L051 MCU #template #project #STM8 #solar #MPPT

Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14

STM32L4 Discovery kit IoT node, low-power wireless, BLE, NFC, SubGHz, Wi-Fi

This is an Energy Meter project leveraging an ATTiny85 microcontroller (U1) to sense current through an ACS712 module (U2). It displays the data in real-time on an OLED display (OLED1) and interacts with three buttons (NEXT, MENU, OK). This compact energy meter is suitable for edge computing and low-power Internet of Things (IoT) applications #project #keypad #arduino #attiny85 #ISP #referenceDesign #edge-computing #edgeComputing #microchip #template #reference-design

Solar-powered autonomous development board that allows you to grow your project from a small seed to a big, beautiful flower. AAA(10440) LiFePO4 battery as energy storage. BQ25504 Ultra Low-Power Energy Harvester

This is an Energy Meter project leveraging an ATTiny85 microcontroller (U1) to sense current through an ACS712 module (U2). It displays the data in real-time on an OLED display (OLED1) and interacts with three buttons (NEXT, MENU, OK). This compact energy meter is suitable for edge computing and low-power Internet of Things (IoT) applications #project #keypad #arduino #attiny85 #ISP #referenceDesign #edge-computing #edgeComputing #microchip #template #reference-design

Solar-powered autonomous development board that allows you to grow your project from a small seed to a big, beautiful flower. AAA(10440) LiFePO4 battery as energy storage. BQ25504 Ultra Low-Power Energy Harvester

Low-power consumer environmental sensor node powered from USB-C 5 V. Includes USB-C sink power entry with reverse polarity, OVP, UVLO, and OCP protection for 0.5 A to 3 A sources, 3.3 V regulation, an ultra-low-power Wi-Fi plus BLE MCU, and a digital temperature/humidity sensor connected over I2C. Intended as a schematic foundation for reliable PCB layout and manufacturing.

Low-power ESP32 audio/radio device with SA828 walkie-talkie module, MAX9814 microphone, PAM8403-driven GD14 bone-conduction output, and single-cell Li-ion charging, power-path, 3.3 V regulation, and battery monitoring.

Low-power USB-C 5V environmental sensor node with robust input protection, ESP32 Wi-Fi/BLE connectivity, digital temperature/humidity sensing, Bluetooth peripheral syncing, and EEG/PPG sensor interfaces for prototype biosignal acquisition.

This tiny board is an easy way to use Toshiba’s TB6612FNG dual motor driver, which can independently control two bidirectional DC motors or one bipolar stepper motor. A recommended motor voltage of 4.5 V to 13.5 V and peak current output of 3 A per channel (1 A continuous) make this a great motor driver for low-power motors. #Module #Motor-Driver #TB6612FNG

Architectural Lavender Translation Collar – ESP32‑S3 Wi‑Fi + LoRa, USB‑C, Li‑ion, low‑power design Overview Experience a cutting-edge IoT solution with this low‑power board built around the ESP32‑S3‑MINI‑1‑N8. Designed for seamless Wi‑Fi (2.4 GHz), BLE, and LoRa (868 MHz) connectivity, this board integrates ENS161 and ENS210 sensors over I2C alongside an RFM95W‑868 LoRa radio on SPI. It is powered via a 3.7 V Li‑ion cell with USB‑C charging up to 500 mA, complete with full battery protection, a robust 3.3 V rail tailored for Wi‑Fi burst currents, and per‑peripheral power gating to enhance energy efficiency. Core Features • MCU: ESP32‑S3‑MINI‑1‑N8 equipped with an onboard PCB antenna for 2.4 GHz Wi‑Fi/BLE, ensuring optimal wireless performance. • Sensors: Integrated ENS161 and ENS210 sensors utilize a shared I2C bus with controllable 4.7 kΩ pull‑ups for streamlined communication. • LoRa Radio: The RFM95W‑868 module, connected via SPI, enables long‑range communication at 868 MHz. Power & USB‑C Connectivity • Battery: A reliable 3.7 V 1200 mAh Li‑ion battery connected via a right‑angle JST‑PH 2‑pin connector features built‑in battery protection. • Charging: The USB‑C receptacle, with CC resistors and TVS protection on D+/D− along with series resistors, supports fast, safe charging with a current limit of 500 mA. • Regulation: A dedicated 3.3 V regulator capable of handling Wi‑Fi burst currents coupled with bulk and high‑frequency decoupling ensures stable operation, supported by status LEDs indicating power and charge states. Low‑Power Control • Peripheral Management: Load switches allow selective power‑gating of the ENS161, ENS210, and RFM95W modules, controlled directly by ESP32‑S3 GPIOs. • Energy Efficiency: Controllable I2C pull‑ups minimize idle current, vital for prolonged battery life in IoT applications. RF and Antenna Integration • 2.4 GHz: Utilizes the integrated PCB antenna on the ESP32‑S3 with proper ground/metal keep‑out zones for optimal signal integrity. • 868 MHz: Features a controlled‑impedance feed from the RFM95W to a PI matching network (C‑L‑C pads) with flexible antenna options—selectable via SMA connector, chip antenna, or PCB trace—and includes RF ESD protection. Connectivity & Debug Features • USB‑C Interface: Provides secure data connectivity with integrated safeguards and proper terminations. • Debugging: A comprehensive programming/debug header exposes EN, BOOT, and UART lines, with test points on key rails and buses (3V3, VBAT, SCK, MOSI, MISO, SDA, SCL, RESET/EN, GND) to simplify development and troubleshooting. Design Verification • Rigorous ERC/DRC and decoupling checks ensure adherence to component ratings and optimal signal routing. • Maintain RF keep‑outs and impedance‑controlled traces for both 2.4 GHz and 868 MHz paths, securing reliable performance even during high‑intensity operations. #IoT #ESP32S3 #LoRa #LowPowerDesign #USB-C #WirelessConnectivity #BatteryPowered #RFDesign

Low-Power USB-C Temperature & Humidity Sensor Node with Wi-Fi and BLE

Low-Power ESP32 USB-C Environmental Sensor Node with Integrated Power Protection

Low-Power USB-C (5 V) Environmental Sensor Node with 18650 Li-Ion Power-Path, Robust Protection (Reverse Polarity, OVP, UVLO, OCP to 3 A), Dual-Radio ESP32-S3 MCU, I²C VOC/Temp/Humidity/Pressure/Lux Sensors, and 2-/4-Pin JST-XH Expansion Pads for Battery and Sensors #USB-C #LiIon #ESP32 #I2C #PowerProtection #EnvironmentalSensor

Low-Power USB-C PD Selectable Output with Push-Button Control and LED Status