drone_communications
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| drone_communications [2022/10/07 02:07] – [WiFi Module] jhagstrand | drone_communications [2023/09/10 02:32] (current) – [Cellular] jhagstrand | ||
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| Create an Access Point (AP) that allows only one connection. \\ | Create an Access Point (AP) that allows only one connection. \\ | ||
| Not used as a hub, but used for point-to-point communications between two devices. | Not used as a hub, but used for point-to-point communications between two devices. | ||
| + | |||
| + | ===== Speeds ===== | ||
| + | |||
| + | Hz - hertz, a measure of bandwidth \\ | ||
| + | bps - bitrate, limited by bandwidth and SNR \\ | ||
| + | |||
| + | |||
| + | ==== RC ==== | ||
| + | |||
| + | 72 MHz (older analog RC gear in the US) \\ | ||
| + | 35 MHz (older analog RC gear in Europe) | ||
| + | 433 MHz (RC and telemetry, in Europe) | ||
| + | 900-915 MHz (video and telemetry, in the US) \\ | ||
| + | 1.3 GHz (video) | ||
| + | 2.4 GHz (digital RC gear, video and telemetry) | ||
| + | 5.8 GHz (video) | ||
| + | |||
| + | https:// | ||
| + | |||
| + | ==== Cellular ===== | ||
| + | |||
| + | 2G \\ | ||
| + | 3G \\ | ||
| + | 4G \\ | ||
| + | 5G - theoretical max: 10 GHz \\ | ||
| + | |||
| + | === 5G vs 5GHz === | ||
| + | |||
| + | 5G - 5th generation cellular networks, a marketing term designed to be vague and misleading \\ | ||
| + | 5 GHz - a wifi band at 5000 hertz, as opposed to the alternative 2.4 GHz \\ | ||
| + | |||
| + | |||
| + | ==== Wifi ==== | ||
| + | |||
| + | 2.4 GHz \\ | ||
| + | 5 GHz | ||
| + | |||
| + | |||
| + | |||
| + | |||
| + | ==== ESP32-C5 ==== | ||
| + | |||
| + | The ESP32-C5 comes with dual-band WiFi 6 (802.11ax) and still has the backward compatible 802.11b/ | ||
| + | |||
| + | //Has this been used with Arduino at 5 GHz?// | ||
| + | |||
| + | https:// | ||
| + | |||
| + | |||
| + | ==== Espressif ==== | ||
| + | |||
| + | The company that makes the ESP chips and boards.\\ | ||
| + | Open source. \\ | ||
| + | IPO on Shanghai Stock Exchange (SSE) in June 2019.\\ | ||
| + | |||
| + | https:// | ||
| + | |||
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drone_communications.1665122855.txt.gz · Last modified: 2022/10/07 02:07 by jhagstrand