Let's dive into the GEEKCREIT HC-12 433MHz SI4438 Wireless Serial Module a reliable solution for wireless communication.
With its compact size and impressive transmission range of up to 1000m, this module is a versatile choice for remote communication needs. Today, I'm excited to discuss the features, performance and potential applications of this product.

As a result of its upgraded chip from SI4463 to SI4438 the GEEKCREIT HC-12 offers a robust communication system that operates within the frequency range of 433.4-473.0MHz, with up to 100 channels available. With a recommended power supply of 3.2V~5.5V, the module can achieve an open field communication distance of approximately 600m, and with adjustable settings it can even reach up to 1000m at a baud rate of 500bps. The module has a low idle current of 16mA, and its dimensions of 27.8 x 14.4 x 4mm make it a convenient fit for various projects.

In essence the GEEKCREIT HC-12 offers a reliable and flexible wireless communication solution, perfect for remote sensing, telemetry, and control applications. However it's worth noting that the module works independently and should be used in pairs. Also, to achieve the maximum range, it's recommended to purchase the SI4463 chip variant, which comes at a higher price point.

In the end the GEEKCREIT HC-12 433MHz SI4438 Wireless Serial Module is an excellent choice for those seeking an affordable, reliable, and flexible wireless communication module. Without a doubt, this module offers impressive performance a small form factor, and excellent adaptability, making it an excellent option for various projects. Whether it's for hobby or professional use, the GEEKCREIT HC-12 will not disappoint providing reliable wireless communication and helping to bring your projects to life.