Description
Stamp-C3U Mate is an accessory kit for the Stamp-C3U minimum core board.
The kit includes a Stamp-C3U along with female headers, male headers, a HY2.0-4P female socket and other practical accessories, making it easy to integrate the Stamp-C3U into your circuit quickly.
Stamp-C3U is a cost-effective RISC-V minimum core board powered by the ESP32-C3 SoC, which integrates a 32-bit single-core RISC-V processor running at up to 160 MHz. It comes with 400 KB SRAM + 4 MB Flash and built-in 2.4 GHz Wi-Fi. The module supports secure boot, flash encryption and digital signature. Despite its small size, it offers powerful features to meet a wide range of IoT application requirements.
Features
- Supports multiple mounting methods (SMT, DIP, flying leads)
- High-temperature plastic armor, SMT reflow up to 230 °C
- On-board 5 V → 3.3 V DC/DC circuit, 14 × GPIO
- USB Type-C connector
- 1 × Programmable RGB LED, 1 × Reset button, 1 × User button
- High-performance 3D antenna for stable and reliable wireless communication
- ESP32 minimum system board
- Development Platform
- Arduino IDE
- ESP-IDF
- PlatformIO
Includes
- 1 × Stamp-C3U
- 1 × High-temperature Sticker
- 2 × 2.54-12P Female Header
- 2 × 2.54-10P Male Header
- 2 × HY2.0-4P Female Socket (90°)
- 1 × Hex Key L-Shape 1.5 mm (For M2 Screw)
Applications
Specifications
| Specification | Parameter |
|---|---|
| SoC | ESP32-C3@32-bit RISC-V Single-Core Processor, Main Frequency up to 160MHz |
| Flash | 4MB |
| SRAM | 400KB |
| ROM | 384KB |
| RTC SRAM | 8KB |
| Wi-Fi | 2.4 GHz Wi-Fi (supports 20/40MHz bandwidth, 802.11 b/g/n, up to 150Mbps) |
| Input Voltage | 5V@500mA |
| Human-Machine Interaction | Programmable Physical Button x 1, Reset/Debug Button x 1, Programmable RGB LED (SK6812) x 1 |
| USB Interface | USB Type-C x 1 |
| Antenna Type | 2.4G 3D Antenna |
| Module Peripheral Interface Resources | ADC, GPIO, SPI, UART, I2C, I2S, PWM, RMT, DMA, USB Serial, TWAI |
| IO Interfaces x14 | G0, G1, G3, G4, G5, G6, G7, G8, G9, G10, G18, G19, G21, G22 |
| IO Interface Pitch | 2.54mm |
| Mounting Screw Specification | M2 x 4 Countersunk Hex Socket Machine Screw |
| Product Size | 34.0 x 20.0 x 4.6mm |
| Product Weight | 3.5g |
| Package Size | 138.0 x 93.0 x 5.6mm |
| Gross Weight | 9.8g |
Product Comparison
The difference between C3U and C3 is that STAMP-C3U removes the USB download chip and uses the ESP32-C3’s built-in USB Serial for programming.
| Model | SoC | IO Count | Button IO | USB Download Chip | USB Interface Function |
|---|---|---|---|---|---|
| STAMP-C3 | ESP32-C3 | 13 | G3 | CH9102 | Download / Serial |
| STAMP-C3U | ESP32-C3 | 14 | G9 | / | Download / JTAG / CDC Serial |