In an age where wireless technology is becoming the norm, building your own Bluetooth keyboard can be a rewarding and practical project. Whether you're a tech enthusiast looking to customize your setup or simply want a portable typing solution, creating a DIY Bluetooth keyboard allows you to tailor features to your specific needs.
ESP-NOW is a wireless communication protocol that enables low-power, low-latency data exchange between devices without the need for a traditional Wi-Fi connection. It operates over the 2.4 GHz band, allowing devices to communicate directly with one another in a peer-to-peer manner.
Infrared communication relies on modulated light waves to transmit data between devices. An IR remote control typically sends a series of pulses (on and off signals) that represent binary data. To clone a remote, we need to capture these pulses and then replicate them.
An interrupt is a signal to the processor emitted by hardware or software indicating an event that needs immediate attention. When an interrupt is received, the current execution of the program is paused, and control is transferred to a special routine called an “interrupt handler” or “interrupt service routine” (ISR). Once the ISR has finished executing, the processor resumes the program from where it was interrupted.
A state machine is a computational model that outlines how a system behaves in various states based on inputs. It consists of a defined set of states, transitions between those states, and events that trigger those transitions. This model is particularly useful in programming for managing complex system behaviours clearly and efficiently.
