m5stackM5Stack
M5Stamp C3U (5pcs)
Manufacturer part no. C122-B
$27.50≈ 23.83 €
Price summary
Listed by m5stack at €23.83. Delivered to France, including shipping, VAT and any customs duty, it comes to about €46.60. 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.
In stock
Estimated landed cost
| Item | €23.83 |
|---|---|
| Shipping | €15.00 |
| VAT (20%) | €7.77 |
| Total delivered | €46.60 |
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.
Specifications (automatically extracted)
Mechanical
| Weight | 30 g |
Description
Description Stamp-C3U is a cost-effective RISC-V minimal core board. It uses the Espressif ESP32-C3 as the main control chip, which features a RISC-V 32-bit single-core processor with a clock speed of up to 160 MHz. It comes with 400 KB SRAM + 4MB FLASH and integrates 2.4 GHz Wi-Fi. The core board supports security mechanisms such as secure boot, flash encryption, and digital signatures. Despite its compact size, it is highly functional and can meet diverse IoT application needs. Features Supports multiple application forms (SMT, DIP, flying leads) Equipped with high-temperature plastic armor, supports SMT reflow temperature (230°C) Includes 5V->3.3V DC/DC circuit, GPIOx14 Type-C interface Programmable RGB LED x1, reset button x1, button x1 High-performance 3D antenna, providing stable and reliable wireless communication quality ESP32 minimal system board Development Platform Arduino IDE ESP-IDF PlatformIO Includes 5 x Stamp-C3U 5 x High-temperature resistant stickers Applications Specifications Specification Parameter SoC ESP32-C3@32-bit RISC-V single-core processor, 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 Interaction Programmable physical button x 1, reset/debug button x 1, programmable RGB LED (SK6812) x 1 USB Interface USB Type-C x1 Antenna Type 2.4G 3D antenna Module Peripheral Interface Resources ADC, GPIO, SPI, UART, I2C, I2S, PWM, RMT, DMA, USB serial, TWAI IO Interface x14 G0, G1, G3, G4, G5, G6, G7, G8, G9, G10, G18, G19, G21, G22 IO Interface Pitch 2.54mm Mounting Screw Spec M2 x 4 countersunk hex key machine screw Product Size 34.0 x 20.0 x 4.6mm Product Weight 4.1g Package Size 138.0 x 93.0 x 7.0mm Gross Weight 22.8g Product Comparison The difference between C3U and C3 is that Stamp-C3U has removed the USB download chip and instead uses the built-in USB Serial of ESP32-C3 for program downloading. Model Main Control IO Count Button
