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    AkaSci 🛰️ (akasci@fosstodon.org)'s status on Monday, 22-Jan-2024 00:43:07 JSTAkaSci 🛰️AkaSci 🛰️
    in reply to

    Mars helicopter Ingenuity communicates with rover Perseverance using the ultra-low-power Zibgee protocol standard over a 914 MHz link.

    Data rate: up to 250 kbps
    Range: up to 1 km
    Antenna: Monopole, omni-directional, 7.3 cm tall, 1 mm thick, gold-plated stainless steel
    Telecom subsystem mass < 14 g, incl. cables and antenna
    Electronics: Commercial off-the-shelf (COTS) radio and processor elements, not radiation hardened!

    https://www.researchgate.net/publication/341504369_The_Mars_Helicopter_Telecommunication_Link_Antennas_Propagation_and_Link_Analysis
    https://en.wikipedia.org/wiki/Zigbee
    #Mars #Ingenuity
    2/n

    In conversationMonday, 22-Jan-2024 00:43:07 JST from fosstodon.orgpermalink

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      Zigbee
      Zigbee is an IEEE 802.15.4-based specification for a suite of high-level communication protocols used to create personal area networks with small, low-power digital radios, such as for home automation, medical device data collection, and other low-power low-bandwidth needs, designed for small scale projects which need wireless connection. Hence, Zigbee is a low-power, low data rate, and close proximity (i.e., personal area) wireless ad hoc network. The technology defined by the Zigbee specification is intended to be simpler and less expensive than other wireless personal area networks (WPANs), such as Bluetooth or more general wireless networking such as Wi-Fi. Applications include wireless light switches, home energy monitors, traffic management systems, and other consumer and industrial equipment that requires short-range low-rate wireless data transfer. Its low power consumption limits transmission distances to 10–100 meters (30' to 300') line-of-sight, depending on power output and environmental characteristics. Zigbee devices can transmit data over long distances by passing data through a mesh network of intermediate devices...
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