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espressif / esp-csi

Applications based on Wi-Fi CSI (Channel state information), such as indoor positioning, human detection
Apache License 2.0
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Running space shortage when using csi API #63

Closed KOOKOKOK closed 1 year ago

KOOKOKOK commented 2 years ago

My goal is to first connect via WiFi, then Ping the router to obtain CSI data, and finally send the data to the computer through UDP. However, there is not enough running space in the whole process. I wonder if there is any optimization method.

env: vscode + esp-idf plugin

chip : esp32 flash: 4M

code link:

https://github.com/KOOKOKOK/template-app.git

Debug Logs image

` Debug log : KH2(0$05IWA(1JY@CP9Q}GW

I (1096) wifi:AP's beacon interval = 102400 us, DTIM period = 1 I (1616) esp_netif_handlers: sta ip: 192.168.2.100, mask: 255.255.255.0, gw: 192.168.2.1 I (1616) wifi station: got ip:192.168.2.100 I (1616) wifi station: connected to ap SSID:pan(1) password:panning2011 I (1626) wifi:ic_enable_sniffer ip addresss: 192.168.2.1 I (1636) wifi station: ================ CSI RECV ================ type,id,mac,rssi,rate,sig_mode,mcs,bandwidth,smoothing,not_sounding,aggregation,stbc,fec_coding,sgi,noise_floor,ampdu_cnt,channel,secondary_channel,local_timestamp,ant,sig_len,rx_state,len,first_word,data CSI_DATA,0,3c:06:a7:14:3b:8e,-17,11,1,7,1,0,1,1,0,0,0,-96,1,11,2,385510,0,146,0,384,1,"[-110,-96,8,0,0,0,0,0,0,0,-5,-1,-19,-4,-18,-4,-18,-3,-18,-3,-18,-4,-18,-4,-17,-4,-17,-4,-17,-4,-17,-4,-17,-4,-17,-4,-17,-4,-16,-4,-16,-4,-16,-4,-16,-3,-16,-3,-16,-3,-16,-2,-16,-2,-16,-2,-16,-2,-15,-2,-15,-3,-15,-3,-8,-1,-15,-1,-15,0,-15,0,-15,1,-15,1,-15,1,-14,2,-14,2,-14,2,-14,1,-15,1,-15,1,-14,1,-14,1,-14,1,-14,1,-14,1,-14,1,-13,1,-13,0,-13,0,-14,0,-14,0,-14,-1,-13,-2,-13,-2,-4,-1,0,0,0,0,0,0,0,0,-1,-1,-5,0,-35,6,-35,6,-35,5,-35,5,-35,-2,-34,-2,-34,-2,-33,-2,-33,-3,-33,-3,-33,-3,-32,-3,-32,-3,-32,-3,-32,-4,-32,-4,-31,-4,-31,-4,-31,-3,-30,-2,-30,-2,-30,-2,-29,-1,-29,0,-29,0,-29,0,-29,0,-29,-1,-29,-2,-29,-1,-28,3,-28,2,-28,3,-28,4,-27,5,-26,6,-26,7,-26,7,-25,7,-25,7,-26,6,-26,5,-26,5,-26,5,-25,6,-25,6,-25,5,-25,5,-24,5,-24,5,-24,5,-25,4,-25,4,-26,2,-26,1,-25,0,-24,-1,-6,-1,0,0,0,0,-1,-1,-1,-1,0,0,0,0,0,0,-1,-1,-1,-1,-7,-2,-25,-7,-25,-8,-25,-9,-25,-10,-24,-11,-24,-11,-23,-11,-23,-12,-23,-13,-22,-14,-22,-15,-22,-16,-21,-17,-21,-17,-20,-18,-20,-18,-20,-18,-19,-19,-19,-19,-18,-19,-18,-20,-18,-20,-17,-21,-17,-22,-17,-22,-16,-23,-18,-21,-16,-24,-16,-24,-15,-24,-15,-24,-14,-25,-14,-25,-14,-25,-14,-26,-14,-26,-14,-27,-13,-27,-12,-28,-11,-28,-11,-28,-11,-29,-11,-29,-11,-30,-10,-30,-10,-30,-10,-31,-10,-31,-9,-32,-9,-33,-7,-33,-7,-33,-6,-34,-10,-34,-9,-34,-10,-33,-10,-34,-2,-5]" E (1816) esp32_asio_exception: Caught exception: send_to: Not enough space! `

zhanzhaocheng commented 2 years ago
  1. First of all, it is not recommended to use UDP to transmit CSI to PC. UDP packet transmission will affect the work of CSI. It is recommended that you use UART for transmission.
  2. You can use this example to transmit CSI data: udp_client
zhanzhaocheng commented 1 year ago

Hello, @KOOKOKOK

Closing this issue, feel free to reopen with more updates. Thanks.