Crowtail – ESP8266 NodeMCU 2.0 is a universal WiFi module for IoT projects with a ready Crowtail interface, microUSB port, and Li-Po battery charging function. It works well in mobile and stationary applications based on Arduino IDE or NodeMCU Lua.
List of products by brand Elecrow
Elecrow – manufacturer of electronics for makers, educators, and embedded-system designers
In the dynamically developing world of electronics and embedded systems, Elecrow stands out as a brand offering comprehensive solutions for builders, hobbyists, and professionals seeking tools for fast and efficient prototyping. The company was created with the maker community in mind, and its product range quickly gained recognition also in academic environments, research and development laboratories, and among companies creating custom electronic devices. Elecrow provides not only high-quality hardware but also a complete range of production services, enabling a smooth transition from concept to finished product. Thanks to this, the brand has become one of the most recognizable partners for creators of DIY electronic devices as well as solutions intended for commercial deployment.
There are 78 products.
Real-time clock module based on the DS1307 IC, designed for battery-backed time and date keeping in embedded projects, compatible with the Crowtail system and I2C communication. Elecrow CT0009RT
Crowtail-TPL5111 Reset Enable Timer is a module for energy-efficient power control of devices in battery-powered projects. It offers six programmable time intervals and an automatic reset mode, supporting the design of low-power circuits.
Crowtail-Rotary Angle Sensor 2.0 is an analog rotary-angle sensor with a 300° range, ideal for value adjustment in electronic projects. It is used in lighting control, volume regulation and user interfaces.
Crowtail – 3-Axis Digital Accelerometer (±16g) is a digital MEMS accelerometer with a wide measurement range and high sensitivity, based on the ADXL345 chip. Intended for projects requiring motion, orientation, and acceleration detection in robotics, safety systems, and interactive devices.
Digital temperature and humidity sensor module based on the DHT20 IC, offering high measurement accuracy, an I2C interface, and a wide supply voltage range, compatible with the Crowtail system. Elecrow CRT10251D
Crowtail-LED Bar 2.0 is a compact data visualization module with 10 LED segments, intended for projects based on Arduino and the Crowtail system. It enables graphical representation of levels and values, and thanks to the cascading function it is suitable for more advanced indicators and light animations.
Crowtail – Bluetooth-compatible Low Energy Module is a small BLE + EDR communication module intended for wireless data transmission in IoT and automation projects. It enables fast serial-interface connection with mobile devices or computers.
Crowtail – Flame Sensor 2.0 is a module detecting infrared radiation and flame sources, operating in the range of 760–1100 nm. Intended for use in safety systems, robotics, and educational projects.
Crowtail – A6 GPRS/GSM Module enables data transmission, voice calls, and SMS messaging over the 2G network, integrating with Crowtail/Arduino systems. Ideal for remote IoT applications, automation, monitoring, and communication projects.
Crowtail – Current Sensor 2.0 enables AC/DC current measurement up to ±20 A using the ACS712 chip and generates an analog signal for further analysis. Used in energy-consumption monitoring systems, automation, and laboratory measurements.
Crowtail – HTU21D Humidity & Temperature Sensor 2.0 enables accurate temperature and humidity measurement using the digital I2C interface. It is suitable for environmental monitoring projects, automation systems, and weather stations.
This development board combines an ATmega32u4 microcontroller with a LoRa RFM95 radio module, enabling long-range, low-power data transfer. It operates in the 868 MHz band, offering a range of up to several kilometers and high interference immunity. Equipped with I2C and USART interfaces, analog and digital ports, a temperature sensor, and a battery level indicator, it is ideal for IoT, telemetry, and remote control projects.
Crowtail – I2C Hub 2.0 expands the I2C bus with three additional ports, enabling the simultaneous connection of multiple devices in the Crowtail system. Useful in projects with a larger number of I2C modules.
Crowtail – GP02 GPS/BDS/GNSS is a compact positioning module with support for three navigation systems, accuracy below 2 m, and a UART interface. Used in projects requiring precise real-time positioning, such as data loggers, vehicle tracking, and field devices.
AI vision development board based on the ESP32-S3 microcontroller, equipped with a 2 MP camera, capacitive TFT touchscreen, audio interfaces, and WiFi and Bluetooth connectivity, designed for local image, audio, and touch-based AI recognition. Elecrow SAD00006D
An energy-efficient wireless communication module that combines the Nordic nRF52840 microcontroller with the Semtech LLCC68 LoRa transceiver. It supports LoRa, LoRaWAN, Bluetooth 5.3, Thread, Zigbee, and NFC, offering a range of up to 10 km and +20 dBm transmit power. Its built-in UART interface with AT commands and low power consumption (5 µA in sleep mode) make it ideal for IoT devices and battery-powered systems. Elecrow nRFLRCC68 Wireless Transceiver Module
The Crowtail-SIM808-GPRS-GSM+GPS-V1.1 module combines GSM/GPRS wireless communication functions and GPS localization in a single board. Thanks to support for AT commands and standard connectors, it is used in mobile projects, GPS tracking and remote data transmission.
Base shield for Raspberry Pi that enables connection of Crowtail modules via exposed GPIO, I2C, and UART interfaces, intended for expanding Raspberry Pi–based projects. Elecrow PSMC18002C
Crowtail-Sound Sensor 2.0 is an analog sound sensor with a built-in amplifier, intended for measuring sound intensity levels. Ideal for interactive projects, sound-responsive systems and acoustic monitoring.
Offer tailored to the needs of microcontroller-system designers and IoT solution creators
Elecrow’s assortment focuses on products that support electronics design and the development of intelligent control and communication systems. The company specializes in modules compatible with popular open-source platforms such as Arduino and Raspberry Pi, which makes integration with existing projects easy. Expansion boards, development kits, environmental sensors, and communication modules such as Wi-Fi, Bluetooth, LoRa, or GSM are designed for quick startup, easy configuration, and full compatibility with programming ecosystems used in educational and engineering environments. Thanks to extensive technical documentation and sample source code, Elecrow products are chosen both by beginners and advanced designers.
Educational solutions supporting the learning of electronics and programming
In response to the growing demand for educational materials in STEM fields, Elecrow has created dedicated educational kits that simplify learning the basics of electronics, microcontroller programming, and automation-system design. Ready-made project packages containing baseboards, sensors, displays, and peripheral components serve as an excellent tool for schools, technical universities, and institutions offering robotics or STEAM courses. The modular approach to kit design allows users to quickly expand system functionality without having to design everything from scratch, significantly reducing project implementation time and lowering the entry threshold for beginners.
Prototype manufacturing and industrial services
Elecrow is not only a manufacturer of electronic components but also a comprehensive provider of production services. The company offers PCB fabrication, SMT and THT assembly, 3D printing, laser cutting, and basic mechanical processing. This allows customers to complete the entire product life cycle—from prototyping to small-batch production—using a single, integrated service ecosystem. For individual designers and technology startups, this translates into time savings and simplified logistics related to launching a new electronic device. This approach also attracts OEM and ODM companies looking for a flexible manufacturing partner for custom solutions.
Focus on quality, documentation, and technical support
High build quality, robust components, and meticulous compliance with international standards ensure that Elecrow products are reliable and long-lasting. The company places strong emphasis on the transparency of its offering—each product is supplied with detailed technical documentation, startup instructions, and example code, which greatly simplifies implementation. An additional advantage is an extensive knowledge base that helps users troubleshoot technical issues, along with an active community centered around open hardware projects. As a result, Elecrow builds strong relationships with customers who value access to information and responsiveness to user needs.
Integration with open-source platforms and support for the maker community
One of Elecrow’s core principles is alignment with the philosophy of open-source hardware. This means that many base projects released by the company are available under open licenses, enabling further development and modification. For the maker community and electronics enthusiasts, this approach offers full control over projects and the ability to tailor hardware to individual requirements. Elecrow products are used not only in education but also in custom control systems, smart-home installations, mobile environmental sensors, and hobbyist automation.
Brand development and expansion directions
Year by year, Elecrow expands its product portfolio by introducing new modules and kits aligned with current technological trends, such as cloud integration, wireless communication, next-generation microcontrollers, and touchscreen-based user interfaces. The company is also investing in tools that support rapid prototyping, enabling it to respond even better to the needs of modern designers. Elecrow plans further investments in production-process automation and the development of assembly services to increase the availability of advanced manufacturing options for smaller customers and individual creators.