PADAUK 5S-I-S02B Single-Core In-Circuit Emulator

Develop and test firmware for supported PADAUK single-core microcontrollers with the 5S-I-S02B in-circuit emulator. Used with PADAUK’s IDE, it lets you emulate your program and connect to your project’s circuitry while working through your design.

This listing is for the 5S-I-S02B emulator. PMS150C microcontrollers are sold separately.

Key features

• Single-core in-circuit emulation for compatible PADAUK MCUs.
• Supports emulation of the popular, low-cost PADAUK PMS150C microcontroller.
• USB connection to your computer for communication and power.
• External power and ground connections.
• I/O measurement contacts for checking signals during development.

Before ordering: Check your specific MCU’s emulation compatibility in its datasheet. Supported peripherals and behavior can differ from the actual chip. This is an emulator for development—not a replacement for a programmer that writes firmware to your MCU.

Explore projects with the PMS150C

Related microcontroller, sold separately. The following information describes the PMS150C chips you can develop with, not the 5S-I-S02B emulator.

The PMS150C is a versatile, programmable 8-bit microcontroller. Your firmware defines how it responds to inputs, makes decisions and controls outputs, giving you a flexible foundation for automation, interactive electronics, lighting and motion control, and compact display interfaces.

At just USD $0.025 per chip in our separately sold USD $2.50, 100-piece chip bundle, before shipping and tax, it is well suited to cost-sensitive, high-volume embedded products where every cent matters, once the firmware is finalized.

Capabilities you can build on

• Input and decision-making: Read switches and digital sensor signals, apply logic and manage operating states in firmware.
• Timing and sequencing: Coordinate delays, timed actions and repeated control sequences with the on-chip timers.
• PWM and output control: Generate control signals for lighting and motion applications through suitable external drivers.
• User interaction: Combine button inputs, mode selection and status outputs to create responsive interfaces.
• Compact display interfaces: Drive text, numbers and simple graphics on the 0.32-inch OLED using our linked PMS150C library.

Design considerations

Select the capabilities your application needs and verify the firmware fits 1K-word program memory and 64 bytes of RAM. The U06 package provides four signal pins (PA3–PA6); PA5 has open-drain output. Use suitable power, interface and driver circuitry, and check the official PMS150C documentation for pin functions and electrical limits. Develop and test before one-time programming.

Building a tiny display project? Our open-source PMS150C 0.32-inch OLED library includes drawing routines and an application template for the PMS150C with the SSD1315 0.32-inch OLED, using PADAUK Mini-C and IDE 1.04C1. Choose only the features you need, check the build fits the chip’s memory, and test your wiring and firmware before programming OTP chips.

Complete Your Project

• PADAUK 5S-P-003C Programmer: Write your tested firmware to supported PADAUK chips.
• PADAUK PMS150C-U06 Microcontrollers, 100 Pieces: Blank SOT23-6 OTP chips for your finished projects.
• Tiny 0.32-Inch OLED Display Module: A compact 60x32 I2C display for text, readings and simple graphics; requires 3.3V power and logic.