DAUNT
发表于 2025-3-23 12:49:06
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Inoperable
发表于 2025-3-23 14:05:58
Radio frequency communication,s used for communication between two-way radios, citizens band radios, and VHF (very-high-frequency) aircraft radios. FM is used in telemetry and radio broadcasting of music, as FM has a higher signal-to-noise ratio than AM at the same transmission power.
affinity
发表于 2025-3-23 21:10:23
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遗产
发表于 2025-3-23 23:59:31
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overhaul
发表于 2025-3-24 03:05:32
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虚弱的神经
发表于 2025-3-24 07:15:36
Wireless local area network,ient is the browser on a laptop, an Android tablet, or a mobile phone. The client connects to the WLAN by selecting the WLAN name and the access password with the browser opened at the URL (Uniform Resource Locator) of the WLAN-predefined IP (Internet Protocol) address.
壁画
发表于 2025-3-24 13:10:29
Rotary encoder control,encoder rotor is turned, pins A and B each make contact with the common pin, which generates square waves, but as the pins are offset, the square waves are 90° out of phase (see Figure 19-1). The number of square wave pulses indicates the extent of the rotation, which is measured on either pin A or pin B.
Cumbersome
发表于 2025-3-24 17:12:50
Internet radio,266 and ESP32 microcontrollers have Wi-Fi functionality and sufficient processor speed for an Internet radio. Connection to the wireless local area network (WLAN) requires the Wi-Fi network SSID (Service Set Identifier) and password. The SSID is the WLAN name, and both the SSID and password are generally located on the base of the router.
温室
发表于 2025-3-24 21:22:10
USB OTG communication,he app. In this chapter, the device without Bluetooth functionality is an Arduino Uno. An HC-05 Bluetooth module could be connected to the Arduino Uno for Bluetooth communication with the Android tablet or mobile phone, but this chapter focuses on USB OTG communication.
微粒
发表于 2025-3-25 00:27:41
ESP-NOW and LoRa communication,th encryption. If power to a microcontroller is lost and then restored, the microcontroller automatically reconnects to the paired microcontroller. In practice, a transmission range of 250 m over open ground was achieved with two ESP32 microcontrollers.