rssi

static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context) { ret_code_t err_code; switch (p_ble_evt->header.evt_id) { /* 连接事件 */ case BLE_GAP_EVT_CONNECTED: NRF_LOG_INFO("Connected"); m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle; err_code = sd_ble_gap_rssi_start(m_conn_handle, 2, 2); //启动rssi APP_ERROR_CHECK(err_code); err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle); APP_ERROR_CHECK(err_code); ble_conn_handler(); break; /* RSSI改变事件 */ case BLE_GAP_EVT_RSSI_CHANGED: ble_rssi = p_ble_evt->evt.gap_evt.params.rssi_changed.rssi; //获取rssi break; default: // No

Is it possible to get Wi-Fi RSSI value on non-jailbroken iOS 7 device? I read about MobileWiFi.framework and Apple80211 functions and if I understand correct they don't work without jailbreak. I don't want to publish my app on AppStore, so PrivateAPI is allowed. I can't find the original post from where this was taken but it worked for me on a jailed device running iOS 7.1 (doesn't work on iOS 8): #include <dlfcn.h> -(NSDictionary *)currentWiFiInfo { void *libHandle; void *airportHandle; int (*apple80211Open)(void *); int (*apple80211Bind)(void *, NSString *); int (*apple80211Close)(void *);

Please help me how to write a code in Java to read the Received Signal Strength Indicator from the WiFi sensor. I tried to do so using socket programming but all my tries weren't get what I want. now I am looking in J2me I may get good answer but I see i may need some advices. Thank you Are you using Windows? WlanAPI should be able to tell you this information which it receives from the WiFi interface so you want to make sure that the WiFi interface on your computer supports whatever bands you need. You neeed to build your own wrappers around the native APIs though. there is an opensource

I would like to measure rssi value of modem.Is there any api to get rssi value for Windows?I used to do that with Wifi.Manager in android.But i couldn't find any api for Windows AvkashChauhan Using Native code is the best. You will need to use WlanQueryInterface() with wlan_intf_opcode_rssi opcode which will return RSSI value as LONG data type. From there you can convert it to dbm. DWORD WINAPI WlanQueryInterface( __in HANDLE hClientHandle, __in const GUID *pInterfaceGuid, __in WLAN_INTF_OPCODE OpCode, __reserved PVOID pReserved, __out PDWORD pdwDataSize, __out PVOID *ppData, __out_opt PWLAN

I am very new to Win7 and WMI. Please advice me where to see for active access point from WiFi and how to get ssid/rssi for each access point. I have use: ManagementClass mc = new ManagementClass("root\\WMI", "MSNdis_80211_ServiceSetIdentifier", null); ManagementObjectSearcher searcher1 = new ManagementObjectSearcher(@"root\wmi","SELECT * FROM MSNdis_80211_BSSIList"); but I got 0 results. Is this class support Win7? Anybody can help? I had a similar problem where I needed to get the SSID of the currently connected Wifi network but didnt feel like creating a wrapper for the API due to its

I'm trying to get RSSI or signal strength from WiFi packets. I want also RSSI from 'WiFi probe requests' (when somebody is searching for a WiFi hotspots). I managed to see it from kismet logs but that was only to make sure it is possible - I don't want to use kismet all the time. For 'full time scanning' I'm using scapy. Does anybody know where can I find the RSSI or signal strength (in dBm) from the packets sniffed with scapy? I don't know how is the whole packet built - and there are a lot of 'hex' values which I don't know how to parse/interpret. I'm sniffing on both interfaces - wlan0

使用STM8L052输出调试信息 重定向put char #include "stdio.h"　　//必不可缺少 char putchar (char c) { /* Write a character to the USART */ USART_SendData8(USART1, c); /* Loop until the end of transmission */ while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET); return (c); } 输出字符串都没问题。 typedef struct { uint16_t time; uint8_t cRssi; }SysParam; SysParam Sys;//定义了一个结构体数据 printf("hello world!"); 当我输出数据时发现不对。 printf("rssi %d\r\n",Sys.cRssi); 调试窗显示值是12，输出是确是3073 但是 printf("rssi %d\r\n",Sys.time); 是正确的。 查了半天感觉应该是数据类型的问题。 printf("rssi %d\r\n",（uint16_t）Sys.cRssi); 把uint8_t转为uint16_t输出就行了。 2019年9月24日 来源： https://www

I am trying to use the Wifimanager to calculate the Signal Level of the access points found during a scan. I am using the following method: WifiManager.calculateSignalLevel(int, int) But it appears to always return the same int no matter what the RSSI level is. Here is my code: public int calculateQoS(int aRSSI){ signalLevel = WifiManager.calculateSignalLevel(RSSI, 5); return signalLevel; } public void testCalculateQoS(){ Log.d("signal", "signal = : " + connMonitor.calculateQoS(-44) + " " + connMonitor.calculateQoS(-80) + " " + connMonitor.calculateQoS(-120) + " " + connMonitor.calculateQoS(