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Product description Application 1: Smart Private Garage Materials: XIAO ESP32C3 *2, Grove - Button *1, Grove - Relay*1 Description: This is a peer-to-peer WiFi communication application, since two XIAOs detect each other via Wifi, the garage door will open or keep opening, and vice versa. Improvement: It is nice to add an ultrasonic distance sensor to measure the car-to-door distance and an OLED screen to check the status of the garage. If you want an onboard voice sensor to command the door to open with vocal instruction, try our XIAO BLE Sense. Application 2: Remote Forest Tracker Materials: XIAO ESP32C3 *1, Grove - LoRa E5 *1, Grove - GPS *1 Description: Thanks to the tiny size of the XIAO series, it is suitable to make the wearable devices, such as a small pet tracker. This wearable device can be used as a simple GPS-Tracker which will lock its current location and publish other data via LoRa. Improvement: A compass that shows direction and distance is a great added value to the tracker that you could consider. Meanwhile, publishing altitude, speed, or other parameters could bring more scenarios to this tracker. Besides, the chip ESP32-C3 allows this tracker to communicate over WiFi or BLE, and therefore, we can upload the tracker’s data or realize the Long Range-to-MQTT bridge as well. XIAO SAMD21 XIAO RP2040 XIAO nRF52840 XIAO ESP32-S3 XIAO ESP32C3 XIAO ESP32-C6 Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 201 4.6 out of 5 stars 198 4.4 out of 5 stars 103 4.7 out of 5 stars 141 4.7 out of 5 stars 360 4.6 out of 5 stars 127 Price $9.50$9.50 $9.99$9.99 $16.99$16.99 $16.99$16.99 $9.90$9.90 $11.99$11.99 Chip & Architecture Microchip SAMD21 （Cortex-M0+ running up to 48MHz） Raspberry Pi RP2040 （Dual-core Cortex-M0+ running up to 133 MHz） Nordic nRF52840 （Cortex-M4 running up to 64 MHz） Expressif ESP32S3 (Dual-core Xtensa LX7 running up to 240 MHz) Expressif ESP32C3 (RISC-V running up to 160 MHz) Expressif ESP32C6 （Two RISC-V processors high-performance one running up to 160 MHz low-power one running up to 20 MHz） RAM 32 KB SRAM 264 KB SRAM 256 KB SRAM 512 KB SRAM 8MB PSRAM 400 KB SRAM 512KB SRAM Flash(chip) 256KB / 1MB 384KB 4MB 4MB Interface I2C/UART/SPI I2C/UART/SPI I2C/UART/SPI I2C/UART/SPI I2C/UART/SPI I2C/UART/SPI PWM/Analog Pin 11/11 11/4 11/6 11/9 11/4 11/7 Onboard Button / Reset/Boot Button Reset Button Reset/Boot Button Reset/Boot Button Reset/Boot Button Bluetooth / / ✓ ✓ ✓ ✓ WIFI / / / ✓ ✓ ✓ Programming Languages Arduino, CircuitPython Arduino, MicroPython, CircuitPython Arduino, CircuitPython Arduino, PlatformIO, MicroPython, Zephyr Arduino, PlatformIO, MicroPython, CircuitPython, Zephyr Arduino, PlatformIO, MicroPython, CircuitPython, Zephyr Baterry Charge IC / / ✓ ✓ ✓ ✓
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