📡Microcontrollers can send RF signals by manipulating pin frequencies.
🔌LoRaWAN technology enables long-range communication with low power consumption.
🕹️Microcontrollers with limited resources encourage creative thinking.
🧪Creating RF signals with microcontrollers requires trial and error.
🌐LoRaWAN packets can be relayed globally through LoRa gateways and the internet.
How do microcontrollers send RF signals without radios?
—Microcontrollers manipulate pin frequencies to generate RF fields.
What is LoRaWAN?
—LoRaWAN is a low-power, long-range wireless protocol for communication between IoT devices and gateways.
What are the limitations of microcontrollers in RF signal transmission?
—Microcontrollers have limited resources, such as memory and computing power, which can restrict the complexity and range of RF signal transmission.
What challenges did the project face in sending LoRa packets without a radio?
—The project required significant trial and error to find the optimal frequencies and timings for generating LoRa packets without a radio module.
How does LoRaWAN enable global communication?
—LoRaWAN packets can be relayed through LoRa gateways and the internet, allowing for global connectivity.
00:00Microcontrollers usually require radio chips or complex circuitry to send RF signals.
02:55By manipulating pin frequencies, microcontrollers can generate RF fields and send LoRaWAN messages.
08:13Microcontrollers with limited resources encourage creative thinking and unconventional solutions.
13:09Precomputing bitstreams allows microcontrollers to transmit complex signals at high frequencies.
18:13The project was successfully ported to different microcontrollers, including the CH32V203 and CH32V003.
