// Simple test of USB Host Mouse/Keyboard // // This example is in the public domain #include "USBHost_t36.h" USBHost myusb; USBHub hub1(myusb); USBHub hub2(myusb); KeyboardController keyboard1(myusb); KeyboardController keyboard2(myusb); USBHIDParser hid1(myusb); USBHIDParser hid2(myusb); USBHIDParser hid3(myusb); USBHIDParser hid4(myusb); USBHIDParser hid5(myusb); MouseController mouse1(myusb); JoystickController joystick1(myusb); int user_axis[64]; uint32_t buttons_prev = 0; RawHIDController rawhid1(myusb); RawHIDController rawhid2(myusb, 0xffc90004); USBDriver *drivers[] = {&hub1, &hub2,&keyboard1, &keyboard2, &joystick1, &hid1, &hid2, &hid3, &hid4, &hid5}; #define CNT_DEVICES (sizeof(drivers)/sizeof(drivers[0])) const char * driver_names[CNT_DEVICES] = {"Hub1","Hub2", "KB1", "KB2", "JOY1D", "HID1", "HID2", "HID3", "HID4", "HID5"}; bool driver_active[CNT_DEVICES] = {false, false, false, false}; // Lets also look at HID Input devices USBHIDInput *hiddrivers[] = {&mouse1, &joystick1, &rawhid1, &rawhid2}; #define CNT_HIDDEVICES (sizeof(hiddrivers)/sizeof(hiddrivers[0])) const char * hid_driver_names[CNT_DEVICES] = {"Mouse1","Joystick1", "RawHid1", "RawHid2"}; bool hid_driver_active[CNT_DEVICES] = {false, false}; bool show_changed_only = false; uint8_t joystick_left_trigger_value = 0; uint8_t joystick_right_trigger_value = 0; uint64_t joystick_full_notify_mask = (uint64_t)-1; void setup() { while (!Serial) ; // wait for Arduino Serial Monitor Serial.println("\n\nUSB Host Testing"); Serial.println(sizeof(USBHub), DEC); myusb.begin(); keyboard1.attachPress(OnPress); keyboard2.attachPress(OnPress); keyboard1.attachExtrasPress(OnHIDExtrasPress); keyboard1.attachExtrasRelease(OnHIDExtrasRelease); keyboard2.attachExtrasPress(OnHIDExtrasPress); keyboard2.attachExtrasRelease(OnHIDExtrasRelease); rawhid1.attachReceive(OnReceiveHidData); rawhid2.attachReceive(OnReceiveHidData); } void loop() { myusb.Task(); if (Serial.available()) { int ch = Serial.read(); // get the first char. while (Serial.read() != -1) ; if ((ch == 'b') || (ch == 'B')) { Serial.println("Only notify on Basic Axis changes"); joystick1.axisChangeNotifyMask(0x3ff); } else if ((ch == 'f') || (ch == 'F')) { Serial.println("Only notify on Full Axis changes"); joystick1.axisChangeNotifyMask(joystick_full_notify_mask); } else { if (show_changed_only) { show_changed_only = false; Serial.println("\n*** Show All fields mode ***"); } else { show_changed_only = true; Serial.println("\n*** Show only changed fields mode ***"); } } } for (uint8_t i = 0; i < CNT_DEVICES; i++) { if (*drivers[i] != driver_active[i]) { if (driver_active[i]) { Serial.printf("*** Device %s - disconnected ***\n", driver_names[i]); driver_active[i] = false; } else { Serial.printf("*** Device %s %x:%x - connected ***\n", driver_names[i], drivers[i]->idVendor(), drivers[i]->idProduct()); driver_active[i] = true; const uint8_t *psz = drivers[i]->manufacturer(); if (psz && *psz) Serial.printf(" manufacturer: %s\n", psz); psz = drivers[i]->product(); if (psz && *psz) Serial.printf(" product: %s\n", psz); psz = drivers[i]->serialNumber(); if (psz && *psz) Serial.printf(" Serial: %s\n", psz); } } } for (uint8_t i = 0; i < CNT_HIDDEVICES; i++) { if (*hiddrivers[i] != hid_driver_active[i]) { if (hid_driver_active[i]) { Serial.printf("*** HID Device %s - disconnected ***\n", hid_driver_names[i]); hid_driver_active[i] = false; } else { Serial.printf("*** HID Device %s %x:%x - connected ***\n", hid_driver_names[i], hiddrivers[i]->idVendor(), hiddrivers[i]->idProduct()); hid_driver_active[i] = true; const uint8_t *psz = hiddrivers[i]->manufacturer(); if (psz && *psz) Serial.printf(" manufacturer: %s\n", psz); psz = hiddrivers[i]->product(); if (psz && *psz) Serial.printf(" product: %s\n", psz); psz = hiddrivers[i]->serialNumber(); if (psz && *psz) Serial.printf(" Serial: %s\n", psz); } } } if(mouse1.available()) { Serial.print("Mouse: buttons = "); Serial.print(mouse1.getButtons()); Serial.print(", mouseX = "); Serial.print(mouse1.getMouseX()); Serial.print(", mouseY = "); Serial.print(mouse1.getMouseY()); Serial.print(", wheel = "); Serial.print(mouse1.getWheel()); Serial.print(", wheelH = "); Serial.print(mouse1.getWheelH()); Serial.println(); mouse1.mouseDataClear(); } if (joystick1.available()) { uint64_t axis_mask = joystick1.axisMask(); uint64_t axis_changed_mask = joystick1.axisChangedMask(); Serial.print("Joystick: buttons = "); uint32_t buttons = joystick1.getButtons(); Serial.print(buttons, HEX); //Serial.printf(" AMasks: %x %x:%x", axis_mask, (uint32_t)(user_axis_mask >> 32), (uint32_t)(user_axis_mask & 0xffffffff)); //Serial.printf(" M: %lx %lx", axis_mask, joystick1.axisChangedMask()); if (show_changed_only) { for (uint8_t i = 0; axis_changed_mask != 0; i++, axis_changed_mask >>= 1) { if (axis_changed_mask & 1) { Serial.printf(" %d:%d", i, joystick1.getAxis(i)); } } } else { for (uint8_t i = 0; axis_mask != 0; i++, axis_mask >>= 1) { if (axis_mask & 1) { Serial.printf(" %d:%d", i, joystick1.getAxis(i)); } } } uint8_t ltv; uint8_t rtv; switch (joystick1.joystickType) { default: break; case JoystickController::PS4: ltv = joystick1.getAxis(3); rtv = joystick1.getAxis(4); if ((ltv != joystick_left_trigger_value) || (rtv != joystick_right_trigger_value)) { joystick_left_trigger_value = ltv; joystick_right_trigger_value = rtv; joystick1.setRumble(ltv, rtv); } break; case JoystickController::PS3: ltv = joystick1.getAxis(18); rtv = joystick1.getAxis(19); if ((ltv != joystick_left_trigger_value) || (rtv != joystick_right_trigger_value)) { joystick_left_trigger_value = ltv; joystick_right_trigger_value = rtv; joystick1.setRumble(ltv, rtv, 50); } break; case JoystickController::XBOXONE: case JoystickController::XBOX360: ltv = joystick1.getAxis(4); rtv = joystick1.getAxis(5); if ((ltv != joystick_left_trigger_value) || (rtv != joystick_right_trigger_value)) { joystick_left_trigger_value = ltv; joystick_right_trigger_value = rtv; joystick1.setRumble(ltv, rtv); Serial.printf(" Set Rumble %d %d", ltv, rtv); } break; } if (buttons != buttons_prev) { if (joystick1.joystickType == JoystickController::PS3) { joystick1.setLEDs((buttons>>12) & 0xf); // try to get to TRI/CIR/X/SQuare } else { uint8_t lr = (buttons & 1)? 0xff : 0; uint8_t lg = (buttons & 2)? 0xff : 0; uint8_t lb = (buttons & 4)? 0xff : 0; joystick1.setLEDs(lr, lg, lb); } buttons_prev = buttons; } Serial.println(); joystick1.joystickDataClear(); } // See if we have some RAW data if (rawhid1) { int ch; uint8_t buffer[64]; uint8_t count_chars = 0; memset(buffer, 0, sizeof(buffer)); if (Serial.available()) { while (((ch = Serial.read()) != -1) && (count_chars < sizeof(buffer))) { buffer[count_chars++] = ch; } rawhid1.sendPacket(buffer); } } } void OnPress(int key) { Serial.print("key '"); switch (key) { case KEYD_UP : Serial.print("UP"); break; case KEYD_DOWN : Serial.print("DN"); break; case KEYD_LEFT : Serial.print("LEFT"); break; case KEYD_RIGHT : Serial.print("RIGHT"); break; case KEYD_INSERT : Serial.print("Ins"); break; case KEYD_DELETE : Serial.print("Del"); break; case KEYD_PAGE_UP : Serial.print("PUP"); break; case KEYD_PAGE_DOWN: Serial.print("PDN"); break; case KEYD_HOME : Serial.print("HOME"); break; case KEYD_END : Serial.print("END"); break; case KEYD_F1 : Serial.print("F1"); break; case KEYD_F2 : Serial.print("F2"); break; case KEYD_F3 : Serial.print("F3"); break; case KEYD_F4 : Serial.print("F4"); break; case KEYD_F5 : Serial.print("F5"); break; case KEYD_F6 : Serial.print("F6"); break; case KEYD_F7 : Serial.print("F7"); break; case KEYD_F8 : Serial.print("F8"); break; case KEYD_F9 : Serial.print("F9"); break; case KEYD_F10 : Serial.print("F10"); break; case KEYD_F11 : Serial.print("F11"); break; case KEYD_F12 : Serial.print("F12"); break; default: Serial.print((char)key); break; } Serial.print("' "); Serial.print(key); Serial.print(" MOD: "); if (keyboard1) { Serial.print(keyboard1.getModifiers(), HEX); Serial.print(" OEM: "); Serial.print(keyboard1.getOemKey(), HEX); Serial.print(" LEDS: "); Serial.println(keyboard1.LEDS(), HEX); } else { Serial.print(keyboard2.getModifiers(), HEX); Serial.print(" OEM: "); Serial.print(keyboard2.getOemKey(), HEX); Serial.print(" LEDS: "); Serial.println(keyboard2.LEDS(), HEX); } //Serial.print("key "); //Serial.print((char)keyboard1.getKey()); //Serial.print(" "); //Serial.print((char)keyboard2.getKey()); //Serial.println(); } void OnHIDExtrasPress(uint32_t top, uint16_t key) { Serial.print("HID ("); Serial.print(top, HEX); Serial.print(") key press:"); Serial.print(key, HEX); if (top == 0xc0000) { switch (key) { case 0x20 : Serial.print(" - +10"); break; case 0x21 : Serial.print(" - +100"); break; case 0x22 : Serial.print(" - AM/PM"); break; case 0x30 : Serial.print(" - Power"); break; case 0x31 : Serial.print(" - Reset"); break; case 0x32 : Serial.print(" - Sleep"); break; case 0x33 : Serial.print(" - Sleep After"); break; case 0x34 : Serial.print(" - Sleep Mode"); break; case 0x35 : Serial.print(" - Illumination"); break; case 0x36 : Serial.print(" - Function Buttons"); break; case 0x40 : Serial.print(" - Menu"); break; case 0x41 : Serial.print(" - Menu Pick"); break; case 0x42 : Serial.print(" - Menu Up"); break; case 0x43 : Serial.print(" - Menu Down"); break; case 0x44 : Serial.print(" - Menu Left"); break; case 0x45 : Serial.print(" - Menu Right"); break; case 0x46 : Serial.print(" - Menu Escape"); break; case 0x47 : Serial.print(" - Menu Value Increase"); break; case 0x48 : Serial.print(" - Menu Value Decrease"); break; case 0x60 : Serial.print(" - Data On Screen"); break; case 0x61 : Serial.print(" - Closed Caption"); break; case 0x62 : Serial.print(" - Closed Caption Select"); break; case 0x63 : Serial.print(" - VCR/TV"); break; case 0x64 : Serial.print(" - Broadcast Mode"); break; case 0x65 : Serial.print(" - Snapshot"); break; case 0x66 : Serial.print(" - Still"); break; case 0x80 : Serial.print(" - Selection"); break; case 0x81 : Serial.print(" - Assign Selection"); break; case 0x82 : Serial.print(" - Mode Step"); break; case 0x83 : Serial.print(" - Recall Last"); break; case 0x84 : Serial.print(" - Enter Channel"); break; case 0x85 : Serial.print(" - Order Movie"); break; case 0x86 : Serial.print(" - Channel"); break; case 0x87 : Serial.print(" - Media Selection"); break; case 0x88 : Serial.print(" - Media Select Computer"); break; case 0x89 : Serial.print(" - Media Select TV"); break; case 0x8A : Serial.print(" - Media Select WWW"); break; case 0x8B : Serial.print(" - Media Select DVD"); break; case 0x8C : Serial.print(" - Media Select Telephone"); break; case 0x8D : Serial.print(" - Media Select Program Guide"); break; case 0x8E : Serial.print(" - Media Select Video Phone"); break; case 0x8F : Serial.print(" - Media Select Games"); break; case 0x90 : Serial.print(" - Media Select Messages"); break; case 0x91 : Serial.print(" - Media Select CD"); break; case 0x92 : Serial.print(" - Media Select VCR"); break; case 0x93 : Serial.print(" - Media Select Tuner"); break; case 0x94 : Serial.print(" - Quit"); break; case 0x95 : Serial.print(" - Help"); break; case 0x96 : Serial.print(" - Media Select Tape"); break; case 0x97 : Serial.print(" - Media Select Cable"); break; case 0x98 : Serial.print(" - Media Select Satellite"); break; case 0x99 : Serial.print(" - Media Select Security"); break; case 0x9A : Serial.print(" - Media Select Home"); break; case 0x9B : Serial.print(" - Media Select Call"); break; case 0x9C : Serial.print(" - Channel Increment"); break; case 0x9D : Serial.print(" - Channel Decrement"); break; case 0x9E : Serial.print(" - Media Select SAP"); break; case 0xA0 : Serial.print(" - VCR Plus"); break; case 0xA1 : Serial.print(" - Once"); break; case 0xA2 : Serial.print(" - Daily"); break; case 0xA3 : Serial.print(" - Weekly"); break; case 0xA4 : Serial.print(" - Monthly"); break; case 0xB0 : Serial.print(" - Play"); break; case 0xB1 : Serial.print(" - Pause"); break; case 0xB2 : Serial.print(" - Record"); break; case 0xB3 : Serial.print(" - Fast Forward"); break; case 0xB4 : Serial.print(" - Rewind"); break; case 0xB5 : Serial.print(" - Scan Next Track"); break; case 0xB6 : Serial.print(" - Scan Previous Track"); break; case 0xB7 : Serial.print(" - Stop"); break; case 0xB8 : Serial.print(" - Eject"); break; case 0xB9 : Serial.print(" - Random Play"); break; case 0xBA : Serial.print(" - Select DisC"); break; case 0xBB : Serial.print(" - Enter Disc"); break; case 0xBC : Serial.print(" - Repeat"); break; case 0xBD : Serial.print(" - Tracking"); break; case 0xBE : Serial.print(" - Track Normal"); break; case 0xBF : Serial.print(" - Slow Tracking"); break; case 0xC0 : Serial.print(" - Frame Forward"); break; case 0xC1 : Serial.print(" - Frame Back"); break; case 0xC2 : Serial.print(" - Mark"); break; case 0xC3 : Serial.print(" - Clear Mark"); break; case 0xC4 : Serial.print(" - Repeat From Mark"); break; case 0xC5 : Serial.print(" - Return To Mark"); break; case 0xC6 : Serial.print(" - Search Mark Forward"); break; case 0xC7 : Serial.print(" - Search Mark Backwards"); break; case 0xC8 : Serial.print(" - Counter Reset"); break; case 0xC9 : Serial.print(" - Show Counter"); break; case 0xCA : Serial.print(" - Tracking Increment"); break; case 0xCB : Serial.print(" - Tracking Decrement"); break; case 0xCD : Serial.print(" - Pause/Continue"); break; case 0xE0 : Serial.print(" - Volume"); break; case 0xE1 : Serial.print(" - Balance"); break; case 0xE2 : Serial.print(" - Mute"); break; case 0xE3 : Serial.print(" - Bass"); break; case 0xE4 : Serial.print(" - Treble"); break; case 0xE5 : Serial.print(" - Bass Boost"); break; case 0xE6 : Serial.print(" - Surround Mode"); break; case 0xE7 : Serial.print(" - Loudness"); break; case 0xE8 : Serial.print(" - MPX"); break; case 0xE9 : Serial.print(" - Volume Up"); break; case 0xEA : Serial.print(" - Volume Down"); break; case 0xF0 : Serial.print(" - Speed Select"); break; case 0xF1 : Serial.print(" - Playback Speed"); break; case 0xF2 : Serial.print(" - Standard Play"); break; case 0xF3 : Serial.print(" - Long Play"); break; case 0xF4 : Serial.print(" - Extended Play"); break; case 0xF5 : Serial.print(" - Slow"); break; case 0x100: Serial.print(" - Fan Enable"); break; case 0x101: Serial.print(" - Fan Speed"); break; case 0x102: Serial.print(" - Light"); break; case 0x103: Serial.print(" - Light Illumination Level"); break; case 0x104: Serial.print(" - Climate Control Enable"); break; case 0x105: Serial.print(" - Room Temperature"); break; case 0x106: Serial.print(" - Security Enable"); break; case 0x107: Serial.print(" - Fire Alarm"); break; case 0x108: Serial.print(" - Police Alarm"); break; case 0x150: Serial.print(" - Balance Right"); break; case 0x151: Serial.print(" - Balance Left"); break; case 0x152: Serial.print(" - Bass Increment"); break; case 0x153: Serial.print(" - Bass Decrement"); break; case 0x154: Serial.print(" - Treble Increment"); break; case 0x155: Serial.print(" - Treble Decrement"); break; case 0x160: Serial.print(" - Speaker System"); break; case 0x161: Serial.print(" - Channel Left"); break; case 0x162: Serial.print(" - Channel Right"); break; case 0x163: Serial.print(" - Channel Center"); break; case 0x164: Serial.print(" - Channel Front"); break; case 0x165: Serial.print(" - Channel Center Front"); break; case 0x166: Serial.print(" - Channel Side"); break; case 0x167: Serial.print(" - Channel Surround"); break; case 0x168: Serial.print(" - Channel Low Frequency Enhancement"); break; case 0x169: Serial.print(" - Channel Top"); break; case 0x16A: Serial.print(" - Channel Unknown"); break; case 0x170: Serial.print(" - Sub-channel"); break; case 0x171: Serial.print(" - Sub-channel Increment"); break; case 0x172: Serial.print(" - Sub-channel Decrement"); break; case 0x173: Serial.print(" - Alternate Audio Increment"); break; case 0x174: Serial.print(" - Alternate Audio Decrement"); break; case 0x180: Serial.print(" - Application Launch Buttons"); break; case 0x181: Serial.print(" - AL Launch Button Configuration Tool"); break; case 0x182: Serial.print(" - AL Programmable Button Configuration"); break; case 0x183: Serial.print(" - AL Consumer Control Configuration"); break; case 0x184: Serial.print(" - AL Word Processor"); break; case 0x185: Serial.print(" - AL Text Editor"); break; case 0x186: Serial.print(" - AL Spreadsheet"); break; case 0x187: Serial.print(" - AL Graphics Editor"); break; case 0x188: Serial.print(" - AL Presentation App"); break; case 0x189: Serial.print(" - AL Database App"); break; case 0x18A: Serial.print(" - AL Email Reader"); break; case 0x18B: Serial.print(" - AL Newsreader"); break; case 0x18C: Serial.print(" - AL Voicemail"); break; case 0x18D: Serial.print(" - AL Contacts/Address Book"); break; case 0x18E: Serial.print(" - AL Calendar/Schedule"); break; case 0x18F: Serial.print(" - AL Task/Project Manager"); break; case 0x190: Serial.print(" - AL Log/Journal/Timecard"); break; case 0x191: Serial.print(" - AL Checkbook/Finance"); break; case 0x192: Serial.print(" - AL Calculator"); break; case 0x193: Serial.print(" - AL A/V Capture/Playback"); break; case 0x194: Serial.print(" - AL Local Machine Browser"); break; case 0x195: Serial.print(" - AL LAN/WAN Browser"); break; case 0x196: Serial.print(" - AL Internet Browser"); break; case 0x197: Serial.print(" - AL Remote Networking/ISP Connect"); break; case 0x198: Serial.print(" - AL Network Conference"); break; case 0x199: Serial.print(" - AL Network Chat"); break; case 0x19A: Serial.print(" - AL Telephony/Dialer"); break; case 0x19B: Serial.print(" - AL Logon"); break; case 0x19C: Serial.print(" - AL Logoff"); break; case 0x19D: Serial.print(" - AL Logon/Logoff"); break; case 0x19E: Serial.print(" - AL Terminal Lock/Screensaver"); break; case 0x19F: Serial.print(" - AL Control Panel"); break; case 0x1A0: Serial.print(" - AL Command Line Processor/Run"); break; case 0x1A1: Serial.print(" - AL Process/Task Manager"); break; case 0x1A2: Serial.print(" - AL Select Tast/Application"); break; case 0x1A3: Serial.print(" - AL Next Task/Application"); break; case 0x1A4: Serial.print(" - AL Previous Task/Application"); break; case 0x1A5: Serial.print(" - AL Preemptive Halt Task/Application"); break; case 0x200: Serial.print(" - Generic GUI Application Controls"); break; case 0x201: Serial.print(" - AC New"); break; case 0x202: Serial.print(" - AC Open"); break; case 0x203: Serial.print(" - AC Close"); break; case 0x204: Serial.print(" - AC Exit"); break; case 0x205: Serial.print(" - AC Maximize"); break; case 0x206: Serial.print(" - AC Minimize"); break; case 0x207: Serial.print(" - AC Save"); break; case 0x208: Serial.print(" - AC Print"); break; case 0x209: Serial.print(" - AC Properties"); break; case 0x21A: Serial.print(" - AC Undo"); break; case 0x21B: Serial.print(" - AC Copy"); break; case 0x21C: Serial.print(" - AC Cut"); break; case 0x21D: Serial.print(" - AC Paste"); break; case 0x21E: Serial.print(" - AC Select All"); break; case 0x21F: Serial.print(" - AC Find"); break; case 0x220: Serial.print(" - AC Find and Replace"); break; case 0x221: Serial.print(" - AC Search"); break; case 0x222: Serial.print(" - AC Go To"); break; case 0x223: Serial.print(" - AC Home"); break; case 0x224: Serial.print(" - AC Back"); break; case 0x225: Serial.print(" - AC Forward"); break; case 0x226: Serial.print(" - AC Stop"); break; case 0x227: Serial.print(" - AC Refresh"); break; case 0x228: Serial.print(" - AC Previous Link"); break; case 0x229: Serial.print(" - AC Next Link"); break; case 0x22A: Serial.print(" - AC Bookmarks"); break; case 0x22B: Serial.print(" - AC History"); break; case 0x22C: Serial.print(" - AC Subscriptions"); break; case 0x22D: Serial.print(" - AC Zoom In"); break; case 0x22E: Serial.print(" - AC Zoom Out"); break; case 0x22F: Serial.print(" - AC Zoom"); break; case 0x230: Serial.print(" - AC Full Screen View"); break; case 0x231: Serial.print(" - AC Normal View"); break; case 0x232: Serial.print(" - AC View Toggle"); break; case 0x233: Serial.print(" - AC Scroll Up"); break; case 0x234: Serial.print(" - AC Scroll Down"); break; case 0x235: Serial.print(" - AC Scroll"); break; case 0x236: Serial.print(" - AC Pan Left"); break; case 0x237: Serial.print(" - AC Pan Right"); break; case 0x238: Serial.print(" - AC Pan"); break; case 0x239: Serial.print(" - AC New Window"); break; case 0x23A: Serial.print(" - AC Tile Horizontally"); break; case 0x23B: Serial.print(" - AC Tile Vertically"); break; case 0x23C: Serial.print(" - AC Format"); break; } } Serial.println(); } void OnHIDExtrasRelease(uint32_t top, uint16_t key) { Serial.print("HID ("); Serial.print(top, HEX); Serial.print(") key release:"); Serial.println(key, HEX); } bool OnReceiveHidData(uint32_t usage, const uint8_t *data, uint32_t len) { // Called for maybe both HIDS for rawhid basic test. One is for the Teensy // to output to Serial. while still having Raw Hid... if (usage == 0xffc90004) { // Lets trim off trailing null characters. while ((len > 0) && (data[len-1] == 0)) { len--; } if (len) { Serial.print("RawHid Serial: "); Serial.write(data, len); } } else { Serial.print("RawHID data: "); Serial.println(usage, HEX); while (len) { uint8_t cb = (len > 16)? 16 : len; const uint8_t *p = data; uint8_t i; for (i = 0; i < cb; i++) { Serial.printf("%02x ", *p++); } Serial.print(": "); for (i = 0; i < cb; i++) { Serial.write(((*data >= ' ')&&(*data <= '~'))? *data : '.'); data++; } len -= cb; Serial.println(); } } return true; }