Merge https://github.com/meshtastic/Meshtastic-device into issue#154

.vscode/settings.json

@@ -59,6 +59,7 @@
         "cfsr",
         "descs",
         "ocrypto",
-        "protobufs"
+        "protobufs",
+        "wifi"
     ]
 }

README.md

@@ -31,6 +31,8 @@ We currently support three models of radios.
     - [T-Beam V1](https://www.thingiverse.com/thing:3830711)
 
 - [TTGO LORA32](https://www.aliexpress.com/item/4000211331316.html) - No GPS
+  - 3D printable case
+    - [TTGO LORA32 v1](https://www.thingiverse.com/thing:3385109)
 
 - [Heltec LoRa 32](https://heltec.org/project/wifi-lora-32/) - No GPS
   - [3D Printable case](https://www.thingiverse.com/thing:3125854)

docs/software/TODO.md

@@ -2,12 +2,12 @@
 
 You probably don't care about this section - skip to the next one.
 
-- bluetooth toggle enable stress test, we are not properly restarting our connect
-- make new android release
-- check in our modified arduino binaries
-- post bug on esp32-arduino
-- implement first cut of router mode: preferentially handle flooding, and change sleep and GPS behaviors
+- test BLE software update again
+- @feh123 Sony Xperia Z1 C6903 running Android 5.1.1
+- first message sent is still doubled for some people
+- Android frontend should refetch the android messages from backend service on Resume
 - let users set arbitrary params in android
+- implement first cut of router mode: preferentially handle flooding, and change sleep and GPS behaviors
 - NRF52 BLE support
 
 # Medium priority
@@ -58,6 +58,13 @@ Items after the first final candidate release.
 - report esp32 device code bugs back to the mothership via android
 - change BLE bonding to something more secure. see comment by pSecurity->setAuthenticationMode(ESP_LE_AUTH_BOND)
 
+Changes related to wifi support on ESP32:
+
+- iram space: https://esp32.com/viewtopic.php?t=8460
+- set https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/external-ram.html spi ram bss
+- figure out if iram or bluetooth classic caused ble problems
+- post bug on esp32-arduino with BLE bug findings
+
 # Spinoff project ideas
 
 - an open source version of https://www.burnair.ch/skynet/

docs/software/esp32-arduino-build-notes.md

@@ -2,7 +2,7 @@
 
 We build our own custom version of esp32-arduino, in order to get some fixes we've made but haven't yet been merged in master.
 
-These are a set of currently unformatted notes on how to build and install them.  Most developers should not care about this, because
+These are a set of currently unformatted notes on how to build and install them. Most developers should not care about this, because
 you'll automatically get our fixed libraries.
 
 ```
@@ -12,5 +12,5 @@ you'll automatically get our fixed libraries.
   https://docs.espressif.com/projects/esp-idf/en/release-v3.3/get-started/linux-setup.html
   kevinh@kevin-server:~/development/meshtastic/esp32-arduino-lib-builder\$ python /home/kevinh/development/meshtastic/esp32-arduino-lib-builder/esp-idf/components/esptool*py/esptool/esptool.py --chip esp32 --port /dev/ttyUSB0 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dout --flash_freq 40m --flash_size detect 0x1000 /home/kevinh/development/meshtastic/esp32-arduino-lib-builder/build/bootloader/bootloader.bin
   cp -a out/tools/sdk/* components/arduino/tools/sdk
-  cp -ar components/arduino/ ~/.platformio/packages/framework-arduinoespressif32@src-fba9d33740f719f712e9f8b07da6ea13/
+  cp -ar components/arduino/* ~/.platformio/packages/framework-arduinoespressif32@src-fba9d33740f719f712e9f8b07da6ea13/
 ```

docs/software/mesh-alg.md

@@ -19,17 +19,18 @@ reliable messaging tasks (stage one for DSR):
 - DONE once an ack comes in, remove the packet from the retry list and deliver the ack to the original sender
 - DONE after three retries, deliver a no-ack packet to the original sender (i.e. the phone app or mesh router service)
 - DONE test one hop ack/nak with the python framework
-- Do stress test with acks
+- DONE Do stress test with acks
 
 dsr tasks
 
-- oops I might have broken message reception
+- DONE oops I might have broken message reception
 - DONE Don't use broadcasts for the network pings (close open github issue)
 - DONE add ignoreSenders to radioconfig to allow testing different mesh topologies by refusing to see certain senders
-- test multihop delivery with the python framework
+- DONE test multihop delivery with the python framework
 
 optimizations / low priority:
 
+- read this [this](http://pages.cs.wisc.edu/~suman/pubs/nadv-mobihoc05.pdf) paper and others and make our naive flood routing less naive
 - read @cyclomies long email with good ideas on optimizations and reply
 - Remove NodeNum assignment algorithm (now that we use 4 byte node nums)
 - make android app warn if firmware is too old or too new to talk to

linker/esp32.extram.bss.ld

@@ -0,0 +1,18 @@
+/* This section is only included if CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY
+   is set, to link some sections to BSS in PSRAM */
+
+SECTIONS
+{
+   /* external memory bss, from any global variable with EXT_RAM_ATTR attribute*/
+  .ext_ram.bss (NOLOAD) :
+  {
+    _ext_ram_bss_start = ABSOLUTE(.);
+    *(.ext_ram.bss*)
+    *libnet80211.a:(.dynsbss .sbss .sbss.* .gnu.linkonce.sb.* .scommon .sbss2.* .gnu.linkonce.sb2.* .dynbss .bss .bss.* .share.mem .gnu.linkonce.b.* COMMON)
+    *libpp.a:(.dynsbss .sbss .sbss.* .gnu.linkonce.sb.* .scommon .sbss2.* .gnu.linkonce.sb2.* .dynbss .bss .bss.* .share.mem .gnu.linkonce.b.* COMMON)
+    *liblwip.a:(.dynsbss .sbss .sbss.* .gnu.linkonce.sb.* .scommon .sbss2.* .gnu.linkonce.sb2.* .dynbss .bss .bss.* .share.mem .gnu.linkonce.b.* COMMON)
+    *libbt.a:(EXCLUDE_FILE (libbtdm_app.a) .dynsbss .sbss .sbss.* .gnu.linkonce.sb.* .scommon .sbss2.* .gnu.linkonce.sb2.* .dynbss .bss .bss.* .share.mem .gnu.linkonce.b.* COMMON)
+    . = ALIGN(4);
+    _ext_ram_bss_end = ABSOLUTE(.);
+  } > extern_ram_seg
+}

platformio.ini

@@ -84,10 +84,12 @@ src_filter =
 upload_speed = 921600
 debug_init_break = tbreak setup
 build_flags =
-  ${env.build_flags} -Wall -Wextra -Isrc/esp32 
+  ${env.build_flags} -Wall -Wextra -Isrc/esp32 -mfix-esp32-psram-cache-issue
+# Hmm - this doesn't work yet
+# board_build.ldscript = linker/esp32.extram.bss.ld
 lib_ignore = segger_rtt
 platform_packages =
-    framework-arduinoespressif32 @ https://github.com/meshtastic/arduino-esp32.git
+    framework-arduinoespressif32 @ https://github.com/meshtastic/arduino-esp32.git#f26c4f96fefd13ed0ed042e27954f8aba6328f6b
 
 ; The 1.0 release of the TBEAM board
 [env:tbeam]

proto

@@ -1 +1 @@
-Subproject commit 72cbde93ffbc2ee917f9d7328558475e02a91cba
+Subproject commit fc79db45944959ee3246f6f808db18e4debab72b

src/esp32/BluetoothUtil.cpp

@@ -122,7 +122,7 @@ BLEService *createBatteryService(BLEServer *server)
     addWithDesc(pBattery, batteryLevelC, "Percentage 0 - 100");
     batteryLevelC->addDescriptor(addBLEDescriptor(new BLE2902())); // Needed so clients can request notification
 
-    // I don't think we need to advertise this
+    // I don't think we need to advertise this? and some phones only see the first thing advertised anyways...
     // server->getAdvertising()->addServiceUUID(pBattery->getUUID());
     pBattery->start();
 
@@ -135,8 +135,8 @@ BLEService *createBatteryService(BLEServer *server)
  */
 void updateBatteryLevel(uint8_t level)
 {
-    // Pretend to update battery levels - fixme do elsewhere
     if (batteryLevelC) {
+        DEBUG_MSG("set BLE battery level %u\n", level);
         batteryLevelC->setValue(&level, 1);
         batteryLevelC->notify();
     }
@@ -215,7 +215,7 @@ class MySecurity : public BLESecurityCallbacks
 
 BLEServer *pServer;
 
-BLEService *pDevInfo, *pUpdate;
+BLEService *pDevInfo, *pUpdate, *pBattery;
 
 void deinitBLE()
 {
@@ -230,6 +230,9 @@ void deinitBLE()
         pUpdate->executeDelete();
     }
 
+    pBattery->stop();
+    pBattery->executeDelete();
+
     pDevInfo->stop();
     pDevInfo->executeDelete();
 
@@ -242,6 +245,7 @@ void deinitBLE()
     if (pUpdate != NULL)
         delete pUpdate;
     delete pDevInfo;
+    delete pBattery;
     delete pServer;
 
     batteryLevelC = NULL; // Don't let anyone generate bogus notifies
@@ -279,10 +283,9 @@ BLEServer *initBLE(StartBluetoothPinScreenCallback startBtPinScreen, StopBluetoo
 
     pDevInfo = createDeviceInfomationService(pServer, hwVendor, swVersion, hwVersion);
 
-    // We now let users create the battery service only if they really want (not all devices have a battery)
-    // BLEService *pBattery = createBatteryService(pServer);
+    pBattery = createBatteryService(pServer);
 
-// #define BLE_SOFTWARE_UPDATE
+#define BLE_SOFTWARE_UPDATE
 #ifdef BLE_SOFTWARE_UPDATE
     pUpdate = createUpdateService(pServer, hwVendor, swVersion,
                                   hwVersion); // We need to advertise this so our android ble scan operation can see it

src/esp32/BluetoothUtil.h

@@ -35,5 +35,8 @@ BLECharacteristic *addBLECharacteristic(BLECharacteristic *c);
 /// Add a characteristic that we will delete when we restart
 BLEDescriptor *addBLEDescriptor(BLEDescriptor *c);
 
+/// Given a level between 0-100, update the BLE attribute
+void updateBatteryLevel(uint8_t level);
+
 /// Any bluetooth objects you allocate _must_ come from this pool if you want to be able to call deinitBLE()
 extern SimpleAllocator btPool;

src/gps/UBloxGPS.cpp

@@ -99,12 +99,12 @@ The Unix epoch (or Unix time or POSIX time or Unix timestamp) is the number of s
 (midnight UTC/GMT), not counting leap seconds (in ISO 8601: 1970-01-01T00:00:00Z).
 */
         struct tm t;
-        t.tm_sec = ublox.getSecond();
-        t.tm_min = ublox.getMinute();
-        t.tm_hour = ublox.getHour();
-        t.tm_mday = ublox.getDay();
-        t.tm_mon = ublox.getMonth() - 1;
-        t.tm_year = ublox.getYear() - 1900;
+        t.tm_sec = ublox.getSecond(0);
+        t.tm_min = ublox.getMinute(0);
+        t.tm_hour = ublox.getHour(0);
+        t.tm_mday = ublox.getDay(0);
+        t.tm_mon = ublox.getMonth(0) - 1;
+        t.tm_year = ublox.getYear(0) - 1900;
         t.tm_isdst = false;
         perhapsSetRTC(t);
     }
@@ -112,10 +112,10 @@ The Unix epoch (or Unix time or POSIX time or Unix timestamp) is the number of s
     if ((fixtype >= 3 && fixtype <= 4) && ublox.getP(0)) // rd fixes only
     {
         // we only notify if position has changed
-        latitude = ublox.getLatitude();
-        longitude = ublox.getLongitude();
-        altitude = ublox.getAltitude() / 1000; // in mm convert to meters
-        dop = ublox.getPDOP(); // PDOP (an accuracy metric) is reported in 10^2 units so we have to scale down when we use it
+        latitude = ublox.getLatitude(0);
+        longitude = ublox.getLongitude(0);
+        altitude = ublox.getAltitude(0) / 1000; // in mm convert to meters
+        dop = ublox.getPDOP(0); // PDOP (an accuracy metric) is reported in 10^2 units so we have to scale down when we use it
         DEBUG_MSG("new gps pos lat=%f, lon=%f, alt=%d, pdop=%f\n", latitude * 1e-7, longitude * 1e-7, altitude, dop * 1e-2);
 
         // bogus lat lon is reported as 0 or 0 (can be bogus just for one)

src/main.cpp

@@ -42,6 +42,7 @@
 
 #ifndef NO_ESP32
 #include "BluetoothUtil.h"
+#include "WiFi.h"
 #endif
 
 #include "RF95Interface.h"
@@ -124,7 +125,28 @@ static uint32_t ledBlinker()
 
 Periodic ledPeriodic(ledBlinker);
 
+#ifndef NO_ESP32
+void initWifi()
+{
+    strcpy(radioConfig.preferences.wifi_ssid, "geeksville");
+    strcpy(radioConfig.preferences.wifi_password, "xxx");
+    if (radioConfig.has_preferences) {
+        const char *wifiName = radioConfig.preferences.wifi_ssid;
 
+        if (*wifiName) {
+            const char *wifiPsw = radioConfig.preferences.wifi_password;
+            if (radioConfig.preferences.wifi_ap_mode) {
+                // DEBUG_MSG("STARTING WIFI AP: ssid=%s, ok=%d\n", wifiName, WiFi.softAP(wifiName, wifiPsw));
+            } else {
+                // WiFi.mode(WIFI_MODE_STA);
+                DEBUG_MSG("JOINING WIFI: ssid=%s\n", wifiName);
+                // WiFi.begin(wifiName, wifiPsw);
+            }
+        }
+    } else
+        DEBUG_MSG("Not using WIFI\n");
+}
+#endif
 
 void setup()
 {
@@ -213,6 +235,11 @@ void setup()
 
     service.init();
 
+#ifndef NO_ESP32
+    // Must be after we init the service, because the wifi settings are loaded by NodeDB (oops)
+    initWifi();
+#endif
+
 #ifdef SX1262_ANT_SW
     // make analog PA vs not PA switch on SX1262 eval board work properly
     pinMode(SX1262_ANT_SW, OUTPUT);

src/mesh/MeshService.cpp

@@ -11,6 +11,8 @@
 #include "PowerFSM.h"
 #include "main.h"
 #include "mesh-pb-constants.h"
+#include "power.h"
+#include "BluetoothUtil.h" // needed for updateBatteryLevel, FIXME, eventually when we pull mesh out into a lib we shouldn't be whacking bluetooth from here
 
 /*
 receivedPacketQueue - this is a queue of messages we've received from the mesh, which we are keeping to deliver to the phone.
@@ -280,6 +282,8 @@ void MeshService::sendOurPosition(NodeNum dest, bool wantReplies)
     sendToMesh(p);
 }
 
+
+
 int MeshService::onGPSChanged(void *unused)
 {
     // DEBUG_MSG("got gps notify\n");
@@ -298,6 +302,10 @@ int MeshService::onGPSChanged(void *unused)
         pos.time = getValidTime();
     }
 
+    // Include our current battery voltage in our position announcement
+    pos.battery_level = powerStatus.batteryChargePercent;
+    updateBatteryLevel(pos.battery_level);
+
     // We limit our GPS broadcasts to a max rate
     static uint32_t lastGpsSend;
     uint32_t now = millis();

src/mesh/NodeDB.cpp

@@ -19,7 +19,7 @@
 NodeDB nodeDB;
 
 // we have plenty of ram so statically alloc this tempbuf (for now)
-DeviceState devicestate;
+EXT_RAM_ATTR DeviceState devicestate;
 MyNodeInfo &myNodeInfo = devicestate.my_node;
 RadioConfig &radioConfig = devicestate.radio;
 ChannelSettings &channelSettings = radioConfig.channel_settings;

src/mesh/mesh.pb.h

@@ -101,8 +101,9 @@ typedef struct _RadioConfig_UserPreferences {
     uint32_t sds_secs;
     uint32_t ls_secs;
     uint32_t min_wake_secs;
-    bool keep_all_packets;
-    bool promiscuous_mode;
+    char wifi_ssid[33];
+    char wifi_password[64];
+    bool wifi_ap_mode;
     pb_size_t ignore_incoming_count;
     uint32_t ignore_incoming[3];
 } RadioConfig_UserPreferences;
@@ -241,7 +242,7 @@ typedef struct _ToRadio {
 #define MeshPacket_init_default                  {0, 0, 0, {SubPacket_init_default}, 0, 0, 0, 0, 0}
 #define ChannelSettings_init_default             {0, _ChannelSettings_ModemConfig_MIN, {0, {0}}, ""}
 #define RadioConfig_init_default                 {false, RadioConfig_UserPreferences_init_default, false, ChannelSettings_init_default}
-#define RadioConfig_UserPreferences_init_default {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0}}
+#define RadioConfig_UserPreferences_init_default {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "", "", 0, 0, {0, 0, 0}}
 #define NodeInfo_init_default                    {0, false, User_init_default, false, Position_init_default, 0, 0}
 #define MyNodeInfo_init_default                  {0, 0, 0, "", "", "", 0, 0, 0, 0, 0, 0, 0, 0}
 #define DeviceState_init_default                 {false, RadioConfig_init_default, false, MyNodeInfo_init_default, false, User_init_default, 0, {NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default}, 0, {MeshPacket_init_default}, false, MeshPacket_init_default, 0}
@@ -257,7 +258,7 @@ typedef struct _ToRadio {
 #define MeshPacket_init_zero                     {0, 0, 0, {SubPacket_init_zero}, 0, 0, 0, 0, 0}
 #define ChannelSettings_init_zero                {0, _ChannelSettings_ModemConfig_MIN, {0, {0}}, ""}
 #define RadioConfig_init_zero                    {false, RadioConfig_UserPreferences_init_zero, false, ChannelSettings_init_zero}
-#define RadioConfig_UserPreferences_init_zero    {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0}}
+#define RadioConfig_UserPreferences_init_zero    {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "", "", 0, 0, {0, 0, 0}}
 #define NodeInfo_init_zero                       {0, false, User_init_zero, false, Position_init_zero, 0, 0}
 #define MyNodeInfo_init_zero                     {0, 0, 0, "", "", "", 0, 0, 0, 0, 0, 0, 0, 0}
 #define DeviceState_init_zero                    {false, RadioConfig_init_zero, false, MyNodeInfo_init_zero, false, User_init_zero, 0, {NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero}, 0, {MeshPacket_init_zero}, false, MeshPacket_init_zero, 0}
@@ -308,8 +309,9 @@ typedef struct _ToRadio {
 #define RadioConfig_UserPreferences_sds_secs_tag 9
 #define RadioConfig_UserPreferences_ls_secs_tag  10
 #define RadioConfig_UserPreferences_min_wake_secs_tag 11
-#define RadioConfig_UserPreferences_keep_all_packets_tag 100
-#define RadioConfig_UserPreferences_promiscuous_mode_tag 101
+#define RadioConfig_UserPreferences_wifi_ssid_tag 12
+#define RadioConfig_UserPreferences_wifi_password_tag 13
+#define RadioConfig_UserPreferences_wifi_ap_mode_tag 14
 #define RadioConfig_UserPreferences_ignore_incoming_tag 102
 #define RouteDiscovery_route_tag                 2
 #define User_id_tag                              1
@@ -456,8 +458,9 @@ X(a, STATIC,   SINGULAR, UINT32,   mesh_sds_timeout_secs,   8) \
 X(a, STATIC,   SINGULAR, UINT32,   sds_secs,          9) \
 X(a, STATIC,   SINGULAR, UINT32,   ls_secs,          10) \
 X(a, STATIC,   SINGULAR, UINT32,   min_wake_secs,    11) \
-X(a, STATIC,   SINGULAR, BOOL,     keep_all_packets, 100) \
-X(a, STATIC,   SINGULAR, BOOL,     promiscuous_mode, 101) \
+X(a, STATIC,   SINGULAR, STRING,   wifi_ssid,        12) \
+X(a, STATIC,   SINGULAR, STRING,   wifi_password,    13) \
+X(a, STATIC,   SINGULAR, BOOL,     wifi_ap_mode,     14) \
 X(a, STATIC,   REPEATED, UINT32,   ignore_incoming, 102)
 #define RadioConfig_UserPreferences_CALLBACK NULL
 #define RadioConfig_UserPreferences_DEFAULT NULL
@@ -592,11 +595,11 @@ extern const pb_msgdesc_t ManufacturingData_msg;
 #define SubPacket_size                           274
 #define MeshPacket_size                          313
 #define ChannelSettings_size                     60
-#define RadioConfig_size                         157
-#define RadioConfig_UserPreferences_size         93
+#define RadioConfig_size                         253
+#define RadioConfig_UserPreferences_size         188
 #define NodeInfo_size                            132
 #define MyNodeInfo_size                          110
-#define DeviceState_size                         5305
+#define DeviceState_size                         5401
 #define DebugString_size                         258
 #define FromRadio_size                           322
 #define ToRadio_size                             316

src/screen.cpp

@@ -52,7 +52,7 @@ namespace meshtastic
 // A text message frame + debug frame + all the node infos
 static FrameCallback normalFrames[MAX_NUM_NODES + NUM_EXTRA_FRAMES];
 static uint32_t targetFramerate = IDLE_FRAMERATE;
-static char btPIN[16] = "888888";
+static char btPIN[16] = "888888"; 
 
 uint8_t imgBattery[16] = { 0xFF, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0xE7, 0x3C };
 
@@ -66,6 +66,14 @@ static void drawBootScreen(OLEDDisplay *display, OLEDDisplayUiState *state, int1
     display->setFont(ArialMT_Plain_16);
     display->setTextAlignment(TEXT_ALIGN_CENTER);
     display->drawString(64 + x, SCREEN_HEIGHT - FONT_HEIGHT_16, "meshtastic.org");
+    display->setFont(ArialMT_Plain_10);
+    const char *region = xstr(HW_VERSION);
+    if(*region && region[3] == '-') // Skip past 1.0- in the 1.0-EU865 string
+        region += 4;
+    char buf[16];
+    snprintf(buf, sizeof(buf), "%s", xstr(APP_VERSION)); // Note: we don't bother printing region or now, it makes the string too long
+    display->drawString(SCREEN_WIDTH - 20, 0, buf);
+    
 }
 
 static void drawFrameBluetooth(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)