| AsyncConfigPortal | Reusable modular web configuration portal for ESP32 and ESP8266. |
| AsyncWiFiPortal | Reboot-into-portal Wi-Fi recovery captive portal for ESP32 and ESP8266. |
| DigitalOutput | A lightweight, multi-platform, thread-safe, and glitch-free digital output control library for Arduino. |
| DS18B20Sensor | One DS18B20-compatible 1-Wire temperature sensor: address-based reads, classified errors, clone identification. |
| EEPROMPreferences | Preferences-style persistent key/value store backed by AVR EEPROM. |
| GeigerMeasurement | Geiger-Müller counter measurement library for ESP32 and ESP8266. |
| HomeAssistantDiscovery | Home Assistant MQTT discovery payloads, built into caller-supplied buffers. |
| Host | Represents a network host identified by either an IP address or an FQDN. |
| HttpDigestAuth | Thread-safe helper class for HTTP Digest Authentication. |
| NetworkManager | Priority-based network connection manager with automatic fallback. |
| NetworkProfile | Thread-safe network interface configuration profiles for ESP32, ESP8266 and AVR. |
| RangeMonitor | Range monitor for a scalar measurement: spike filter, time-based EMA, soft limits with alarm delay, hard limits, fault detection. |
| RunningStatistics | General-purpose sliding window and cumulative statistics for time-series data on embedded systems. |
| SafeSerial | Asynchronous, Thread-safe, and Non-blocking Serial Library for ESP32 Arduino Core (with HWCDC and USBCDC support). |
| SimcomA76xx | A library for SimCom A76xx series LTE modems. |
| SyslogSender | Sends RFC 5424 syslog messages over UDP; forwards ESP_LOG on ESP32. |
| TemperatureMonitor | Monitored DS18B20 temperature channels on one 1-Wire bus: address-bound slots, persistence, non-blocking cycle, state-change events. |