Manufacturer part no. U189
Listed by m5stack at €8.62. Delivered to France, including shipping, VAT and any customs duty, it comes to about €28.34. Prices last checked on 2026-09-16.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
| Item | €8.62 |
|---|---|
| Shipping | €15.00 |
| VAT (20%) | €4.72 |
| Total delivered | €28.34 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
| Weight | 16 g |
Description Unit TimerPWR is a timed power supply unit with main functions such as "charge/discharge + timed switching + screen display + boost output". It features an embedded STM32 microcontroller for implementing RTC (Real-Time Clock) and overall control, allowing users to set automatic power-on and power-off times according to their needs. The unit is powered via a Type-C interface and can be connected to a rechargeable battery through a 1.25-2P interface. It includes a built-in battery charging circuit that supports a charging current of 330mA. Additionally, it features a built-in DC-DC boost circuit, which can provide a 5V/800mA (1400mA@1C battery-powered) power output to external devices through the Grove port. Moreover, it includes an INA3221 sensor for real-time monitoring of input and output current and voltage. This unit is equipped with a 0.66-inch OLED display and two side buttons for user interaction, enabling users to easily view the system's real-time status and modify settings. Users can configure settings using the side buttons or via I2C commands through the Grove interface. This product is suitable for applications such as smart homes, industrial automation, and timed control devices. Features RTC cyclic timing control Battery-powered Built-in DC-DC boost circuit Current/voltage monitoring OLED display Grove interface Button-controlled power on/off mode Includes 1 x Unit TimerPWR 1 x HY2.0-4P Grove cable (20cm) Applications Timed control devices Portable electronic devices Sensor node power supply Specifications Specification Parameters MCU STM32G031G8U6 Input Voltage Supports 5V DC input (via Type-C interface) Output Voltage Built-in DC-DC boost circuit, outputs 5V for external devices Battery Power 3.7V polymer lithium battery Display 0.66-inch OLED display, 64x48 resolution, SPI communication Interfaces Type-C interface: for battery charging (cannot directly power the Grove port) Grove interface: for external sensors and module expansion, supp
