| 1 | #include <Arduino.h> |
| 2 | #include <BLEDevice.h> |
| 3 | #include <BLEScan.h> |
| 4 | #include <BLEAdvertisedDevice.h> |
| 5 | #include <vector> |
| 6 | |
| 7 | #include "display.h" |
| 8 | #include "buttons.h" |
| 9 | #include "config.h" |
| 10 | |
| 11 | // ===== DEVICE STRUCT ===== |
| 12 | struct BLEDeviceInfo { |
| 13 | String name; |
| 14 | String address; |
| 15 | int rssi; |
| 16 | String manufacturer; |
| 17 | String deviceType; |
| 18 | }; |
| 19 | |
| 20 | static std::vector<BLEDeviceInfo> devices; |
| 21 | static BLEScan *pBLEScan; |
| 22 | static int selectedIndex = 0; |
| 23 | |
| 24 | // ===== CALLBACK ===== |
| 25 | class MyAdvertisedDeviceCallbacks : public BLEAdvertisedDeviceCallbacks { |
| 26 | void onResult(BLEAdvertisedDevice advertisedDevice) override { |
| 27 | BLEDeviceInfo dev; |
| 28 | |
| 29 | String tempName = advertisedDevice.getName(); |
| 30 | |
| 31 | if (tempName.length() == 0 && advertisedDevice.haveServiceData()) { |
| 32 | tempName = advertisedDevice.getServiceData().c_str(); |
| 33 | } |
| 34 | |
| 35 | if (tempName.length() == 0) { |
| 36 | String addr = advertisedDevice.getAddress().toString().c_str(); |
| 37 | tempName = "BLE_" + addr.substring(addr.length() - 5); |
| 38 | } |
| 39 | |
| 40 | dev.name = tempName; |
| 41 | dev.address = advertisedDevice.getAddress().toString().c_str(); |
| 42 | dev.rssi = advertisedDevice.getRSSI(); |
| 43 | |
| 44 | if (advertisedDevice.haveManufacturerData()) { |
| 45 | String mData = advertisedDevice.getManufacturerData().c_str(); |
| 46 | |
| 47 | if (mData.length() >= 2) { |
| 48 | char buffer[10]; |
| 49 | sprintf(buffer, "0x%02X%02X", |
| 50 | (uint8_t)mData[1], |
| 51 | (uint8_t)mData[0]); |
| 52 | dev.manufacturer = String(buffer); |
| 53 | } else { |
| 54 | dev.manufacturer = "unknown"; |
| 55 | } |
| 56 | } else { |
| 57 | dev.manufacturer = "unknown"; |
| 58 | } |
| 59 | |
| 60 | if (advertisedDevice.haveServiceUUID()) { |
| 61 | dev.deviceType = |
| 62 | advertisedDevice.getServiceUUID().toString().c_str(); |
| 63 | } else { |
| 64 | dev.deviceType = "unknown"; |
| 65 | } |
| 66 | |
| 67 | devices.push_back(dev); |
| 68 | } |
| 69 | }; |
| 70 | |
| 71 | // ===== DRAW MENU ===== |
| 72 | void ble_drawMenu() |
| 73 | { |
| 74 | u8g2.clearBuffer(); |
| 75 | |
| 76 | if (devices.empty()) |
| 77 | { |
| 78 | u8g2.setFont(u8g2_font_6x12_tr); |
| 79 | u8g2.drawStr(0, 30, "No devices"); |
| 80 | u8g2.drawStr(0, 45, "Press BACK"); |
| 81 | } |
| 82 | else |
| 83 | { |
| 84 | u8g2.setFont(u8g2_font_5x8_tr); |
| 85 | |
| 86 | char counter[20]; |
| 87 | sprintf(counter, "%d/%d", selectedIndex + 1, (int)devices.size()); |
| 88 | u8g2.drawStr(0, 8, counter); |
| 89 | |
| 90 | u8g2.setFont(u8g2_font_6x10_tr); |
| 91 | |
| 92 | for (int i = 0; i < 3; i++) |
| 93 | { |
| 94 | int idx = selectedIndex + i; |
| 95 | if (idx >= devices.size()) break; |
| 96 | |
| 97 | int y = 22 + i * 14; |
| 98 | |
| 99 | if (i == 0) |
| 100 | { |
| 101 | u8g2.drawBox(0, y - 10, 128, 12); |
| 102 | u8g2.setDrawColor(0); |
| 103 | } |
| 104 | |
| 105 | String text = devices[idx].name; |
| 106 | if (text.length() > 12) |
| 107 | text = text.substring(0, 12) + ".."; |
| 108 | |
| 109 | text += " (" + String(devices[idx].rssi) + ")"; |
| 110 | |
| 111 | u8g2.drawStr(2, y, text.c_str()); |
| 112 | |
| 113 | if (i == 0) |
| 114 | u8g2.setDrawColor(1); |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | u8g2.sendBuffer(); |
| 119 | } |
| 120 | |
| 121 | // ===== DEVICE DETAILS ===== |
| 122 | void ble_drawDetails(const BLEDeviceInfo &dev) |
| 123 | { |
| 124 | u8g2.clearBuffer(); |
| 125 | u8g2.setFont(u8g2_font_5x8_tr); |
| 126 | |
| 127 | u8g2.drawStr(0, 10, dev.name.c_str()); |
| 128 | u8g2.drawStr(0, 20, dev.address.c_str()); |
| 129 | |
| 130 | char rssiStr[20]; |
| 131 | sprintf(rssiStr, "RSSI: %d", dev.rssi); |
| 132 | u8g2.drawStr(0, 30, rssiStr); |
| 133 | |
| 134 | u8g2.drawStr(0, 40, dev.manufacturer.c_str()); |
| 135 | |
| 136 | u8g2.sendBuffer(); |
| 137 | } |
| 138 | |
| 139 | // ===== SCAN ===== |
| 140 | void ble_scan() |
| 141 | { |
| 142 | devices.clear(); |
| 143 | |
| 144 | u8g2.clearBuffer(); |
| 145 | u8g2.drawStr(10, 30, "Scanning..."); |
| 146 | u8g2.sendBuffer(); |
| 147 | |
| 148 | BLEDevice::init(""); |
| 149 | |
| 150 | pBLEScan = BLEDevice::getScan(); |
| 151 | pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks(), false); |
| 152 | pBLEScan->setActiveScan(true); |
| 153 | pBLEScan->setInterval(100); |
| 154 | pBLEScan->setWindow(99); |
| 155 | |
| 156 | pBLEScan->start(5, false); |
| 157 | |
| 158 | // remove duplicates |
| 159 | std::vector<BLEDeviceInfo> unique; |
| 160 | for (auto &d : devices) |
| 161 | { |
| 162 | bool exists = false; |
| 163 | for (auto &u : unique) |
| 164 | { |
| 165 | if (u.address == d.address) |
| 166 | { |
| 167 | exists = true; |
| 168 | break; |
| 169 | } |
| 170 | } |
| 171 | if (!exists) unique.push_back(d); |
| 172 | } |
| 173 | |
| 174 | devices = unique; |
| 175 | } |
| 176 | |
| 177 | // ===== MAIN LOOP ===== |
| 178 | void ble_loop() |
| 179 | { |
| 180 | static uint32_t lastPress = 0; |
| 181 | |
| 182 | if (millis() - lastPress < 200) |
| 183 | return; |
| 184 | |
| 185 | if (btnDown() && selectedIndex < (int)devices.size() - 1) |
| 186 | { |
| 187 | selectedIndex++; |
| 188 | ble_drawMenu(); |
| 189 | lastPress = millis(); |
| 190 | } |
| 191 | else if (btnUp() && selectedIndex > 0) |
| 192 | { |
| 193 | selectedIndex--; |
| 194 | ble_drawMenu(); |
| 195 | lastPress = millis(); |
| 196 | } |
| 197 | else if (btnSelect() && !devices.empty()) |
| 198 | { |
| 199 | ble_drawDetails(devices[selectedIndex]); |
| 200 | delay(3000); |
| 201 | ble_drawMenu(); |
| 202 | lastPress = millis(); |
| 203 | } |
| 204 | else if (btnBack()) |
| 205 | { |
| 206 | lastPress = millis(); |
| 207 | return; |
| 208 | } |
| 209 | } |