esp32-cam-80211-tx | Sending ESP32-CAM camera frames
kandi X-RAY | esp32-cam-80211-tx Summary
kandi X-RAY | esp32-cam-80211-tx Summary
This project aims to send camera frames from an ESP32-CAM to a laptop over a distance of potentially several kilometers, using no additional hardware on the ESP32 end. How do we achieve this? As it turns out, WiFi radio waves can actually make it a very long way if there's nothing in the way. So if you just have a powerful receiving antenna, this should be possible. The issue is, the standard IEEE 802.11 protocol (and by extension WiFi) doesn't support this sort of unidirectional communication. Usually, the receiver needs to send back and acknowledgement frames. However, in the same way that your router sends out unidirectional data in the form of SSID broadcasts, so can we... if we're willing to use a somewhat unofficial function in the ESP32's API.
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I have js files Dashboard and Adverts. I managed to get Dashboard to list the information in one json file (advertisers), but when clicking on an advertiser I want it to navigate to a separate page that will display some data (Say title and text) from the second json file (productadverts). I can't get it to work. Below is the code for the Dashboard and next for Adverts. Then the json files
...ANSWER
Answered 2020-May-17 at 23:55The new object to get params in React Navigation 5 is:
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