diff --git a/src/configmanager.cpp b/src/configmanager.cpp
index ba39b8af..3978f55b 100644
--- a/src/configmanager.cpp
+++ b/src/configmanager.cpp
@@ -289,7 +289,9 @@ void loadConfig() {
     ESP_LOGI(TAG, "Done");
 
     // put actions to be triggered on loaded config here
-    u8x8.setPowerSave(!cfg.screenon); // set display on/off
+    #ifdef HAS_DISPLAY  
+        u8x8.setPowerSave(!cfg.screenon); // set display on/off
+    #endif
     #ifdef HAS_ANTENNA_SWITCH // set antenna type, if device has one
       antenna_select(cfg.wifiant);
     #endif
diff --git a/src/globals.h b/src/globals.h
index 1ef61705..9a65a3b8 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -49,8 +49,6 @@ extern std::set<uint16_t> macs;
 
 #ifdef HAS_DISPLAY
     extern HAS_DISPLAY u8x8;
-#else
-    extern U8X8_NULL u8x8;
 #endif
 
 #ifdef BLECOUNTER
diff --git a/src/lorawan.cpp b/src/lorawan.cpp
index 0f0f86eb..65812d40 100644
--- a/src/lorawan.cpp
+++ b/src/lorawan.cpp
@@ -99,14 +99,18 @@ void do_send(osjob_t* j){
     // Check if there is not a current TX/RX job running
     if (LMIC.opmode & OP_TXRXPEND) {
         ESP_LOGI(TAG, "OP_TXRXPEND, not sending");
-        u8x8.clearLine(7); 
-        u8x8.drawString(0, 7, "LORA BUSY");
+        #ifdef HAS_DISPLAY
+            u8x8.clearLine(7); 
+            u8x8.drawString(0, 7, "LORA BUSY");
+        #endif
     } else {
         // Prepare upstream data transmission at the next possible time.
         LMIC_setTxData2(1, mydata, sizeof(mydata)-1, (cfg.countermode & 0x02));
         ESP_LOGI(TAG, "Packet queued");
-        u8x8.clearLine(7);
-        u8x8.drawString(0, 7, "PACKET QUEUED");
+        #ifdef HAS_DISPLAY
+            u8x8.clearLine(7);
+            u8x8.drawString(0, 7, "PACKET QUEUED");
+        #endif
     }
     // Next TX is scheduled after TX_COMPLETE event.
 }
@@ -115,34 +119,46 @@ void onEvent (ev_t ev) {
     switch(ev) {
         case EV_SCAN_TIMEOUT:
             ESP_LOGI(TAG, "EV_SCAN_TIMEOUT");
-            u8x8.clearLine(7); 
-            u8x8.drawString(0, 7, "SCAN TIMEOUT");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7); 
+                u8x8.drawString(0, 7, "SCAN TIMEOUT");
+            #endif
             break;
         case EV_BEACON_FOUND:
             ESP_LOGI(TAG, "EV_BEACON_FOUND");
-            u8x8.clearLine(7); 
-            u8x8.drawString(0, 7, "BEACON FOUND");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7); 
+                u8x8.drawString(0, 7, "BEACON FOUND");
+            #endif
             break;
         case EV_BEACON_MISSED:
             ESP_LOGI(TAG, "EV_BEACON_MISSED");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "BEACON MISSED");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "BEACON MISSED");
+            #endif
             break;
         case EV_BEACON_TRACKED:
             ESP_LOGI(TAG, "EV_BEACON_TRACKED");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "BEACON TRACKED");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "BEACON TRACKED");
+            #endif
             break;
         case EV_JOINING:
             ESP_LOGI(TAG, "EV_JOINING");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "JOINING");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "JOINING");
+            #endif
             break;
         case EV_JOINED:
             ESP_LOGI(TAG, "EV_JOINED");
-            u8x8.clearLine(6); // erase "Join Wait" message from display, see main.cpp
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "JOINED");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(6); // erase "Join Wait" message from display, see main.cpp
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "JOINED");
+            #endif
             // Disable link check validation (automatically enabled
             // during join, but not supported by TTN at this time).
             LMIC_setLinkCheckMode(0);
@@ -156,38 +172,50 @@ void onEvent (ev_t ev) {
             break;
         case EV_RFU1:
             ESP_LOGI(TAG, "EV_RFU1");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "RFUI");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "RFUI");
+            #endif
             break;
         case EV_JOIN_FAILED:
             ESP_LOGI(TAG, "EV_JOIN_FAILED");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "JOIN FAILED");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "JOIN FAILED");
+            #endif
             break;
         case EV_REJOIN_FAILED:
             ESP_LOGI(TAG, "EV_REJOIN_FAILED");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "REJOIN FAILED");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "REJOIN FAILED");
+                #endif
             break;
         case EV_TXCOMPLETE:
             ESP_LOGI(TAG, "EV_TXCOMPLETE (includes waiting for RX windows)");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "TX COMPLETE");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "TX COMPLETE");
+            #endif
             if (LMIC.txrxFlags & TXRX_ACK) {
               ESP_LOGI(TAG, "Received ack");
-              u8x8.clearLine(7);
-              u8x8.drawString(0, 7, "RECEIVED ACK");
+              #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "RECEIVED ACK");
+              #endif
             }   
             if (LMIC.dataLen) {
                 ESP_LOGI(TAG, "Received %i bytes of payload", LMIC.dataLen);
-                u8x8.clearLine(6); 
-                u8x8.setCursor(0, 6);
-                u8x8.printf("Rcvd %i bytes", LMIC.dataLen);
-                u8x8.clearLine(7);
-                u8x8.setCursor(0, 7);
-                // LMIC.snr = SNR twos compliment [dB] * 4
-                // LMIC.rssi = RSSI [dBm] (-196...+63)
-                u8x8.printf("RSSI %d SNR %d", LMIC.rssi, (signed char)LMIC.snr / 4);
+                #ifdef HAS_DISPLAY
+                    u8x8.clearLine(6); 
+                    u8x8.setCursor(0, 6);
+                    u8x8.printf("Rcvd %i bytes", LMIC.dataLen);
+                    u8x8.clearLine(7);
+                    u8x8.setCursor(0, 7);
+                    // LMIC.snr = SNR twos compliment [dB] * 4
+                    // LMIC.rssi = RSSI [dBm] (-196...+63)
+                    u8x8.printf("RSSI %d SNR %d", LMIC.rssi, (signed char)LMIC.snr / 4);
+                #endif
                 // check if payload received on command port, then call remote command interpreter
                 if ( (LMIC.txrxFlags & TXRX_PORT) && (LMIC.frame[LMIC.dataBeg-1] == RCMDPORT ) ) {
                     // caution: buffering LMIC values here because rcommand() can modify LMIC.frame
@@ -202,35 +230,47 @@ void onEvent (ev_t ev) {
             break;
         case EV_LOST_TSYNC:
             ESP_LOGI(TAG, "EV_LOST_TSYNC");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "LOST TSYNC");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "LOST TSYNC");
+            #endif
             break;
         case EV_RESET:
             ESP_LOGI(TAG, "EV_RESET");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "RESET");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "RESET");
+            #endif
             break;
         case EV_RXCOMPLETE:
             // data received in ping slot
             ESP_LOGI(TAG, "EV_RXCOMPLETE");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "RX COMPLETE");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "RX COMPLETE");
+            #endif
             break;
         case EV_LINK_DEAD:
             ESP_LOGI(TAG, "EV_LINK_DEAD");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "LINK DEAD");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "LINK DEAD");
+            #endif
             break;
         case EV_LINK_ALIVE:
             ESP_LOGI(TAG, "EV_LINK_ALIVE");
-            u8x8.clearLine(7);
-            u8x8.drawString(0, 7, "LINK ALIVE");
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.drawString(0, 7, "LINK ALIVE");
+            #endif
             break;
         default:
             ESP_LOGI(TAG, "Unknown event");
-            u8x8.clearLine(7);
-            u8x8.setCursor(0, 7);
-            u8x8.printf("UNKNOWN EVENT %d", ev);
+            #ifdef HAS_DISPLAY
+                u8x8.clearLine(7);
+                u8x8.setCursor(0, 7);
+                u8x8.printf("UNKNOWN EVENT %d", ev);
+            #endif
             break;
     }
 }
diff --git a/src/macsniff.cpp b/src/macsniff.cpp
index fe5b80a4..e0907317 100644
--- a/src/macsniff.cpp
+++ b/src/macsniff.cpp
@@ -60,7 +60,9 @@ bool mac_add(uint8_t *paddr, int8_t rssi, bool sniff_type) {
      
         if (newmac.second) { // first time seen this WIFI or BLE MAC
             snprintf(counter, 6, "%i", macs.size());		// convert 16-bit MAC counter to decimal counter value
-            u8x8.draw2x2String(0, 0, counter);
+            #ifdef HAS_DISPLAY  
+                u8x8.draw2x2String(0, 0, counter);
+            #endif
             ESP_LOGI(TAG, "%s RSSI %04d -> Hash %04x -> #%05i", typebuff, rssi, hashedmac, macs.size());
         } else { // already seen WIFI or BLE MAC
             ESP_LOGI(TAG, "%s RSSI %04d -> already seen", typebuff, rssi);
@@ -87,8 +89,10 @@ class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
         // Current devices seen on this scan session
         currentScanDevice++;
         mac_add(p, advertisedDevice.getRSSI(), MAC_SNIFF_BLE);
-        u8x8.setCursor(12,3);
-        u8x8.printf("%d", currentScanDevice);
+        #ifdef HAS_DISPLAY  
+            u8x8.setCursor(12,3);
+            u8x8.printf("%d", currentScanDevice);
+        #endif
         rgb_set_color(COLOR_NONE);
 
     }
@@ -97,17 +101,21 @@ class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
 void BLECount() {
     int blenum = 0; // Total device seen on this scan session
     currentScanDevice = 0; // Set 0 seen device on this scan session
-    u8x8.clearLine(3);
-    u8x8.drawString(0,3,"BLE Scan...");
+    #ifdef HAS_DISPLAY  
+        u8x8.clearLine(3);
+        u8x8.drawString(0,3,"BLE Scan...");
+    #endif
     BLEDevice::init(PROGNAME);
     BLEScan* pBLEScan = BLEDevice::getScan(); //create new scan
     pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
     pBLEScan->setActiveScan(true); //active scan uses more power, but get results faster
     BLEScanResults foundDevices = pBLEScan->start(cfg.blescantime);
     blenum=foundDevices.getCount();
-    u8x8.clearLine(3);
-    u8x8.setCursor(0,3);
-    u8x8.printf("BLE#: %-5i %-3i",bles.size(), blenum);
+    #ifdef HAS_DISPLAY  
+        u8x8.clearLine(3);
+        u8x8.setCursor(0,3);
+        u8x8.printf("BLE#: %-5i %-3i",bles.size(), blenum);
+    #endif
 }
 #endif
 
diff --git a/src/rcommand.cpp b/src/rcommand.cpp
index 09d813fc..505c41cc 100644
--- a/src/rcommand.cpp
+++ b/src/rcommand.cpp
@@ -59,9 +59,11 @@ void set_reset(int val) {
     switch (val) {
         case 0: // restart device
             ESP_LOGI(TAG, "Remote command: restart device");
-            u8x8.clearLine(5);
-            u8x8.setCursor(0, 5);
-            u8x8.printf("Reset pending   ");
+            #ifdef HAS_DISPLAY  
+                u8x8.clearLine(5);
+                u8x8.setCursor(0, 5);
+                u8x8.printf("Reset pending   ");
+            #endif
             vTaskDelay(10000/portTICK_PERIOD_MS); // wait for LMIC to confirm LoRa downlink to server
             esp_restart();
             break;
@@ -71,16 +73,20 @@ void set_reset(int val) {
             wifis.clear(); // clear Wifi macs container
             bles.clear(); // clear BLE macs container
             salt = random(65536); // get new 16bit random for salting hashes
-            u8x8.clearLine(0); u8x8.clearLine(1); // clear Display counter
-            u8x8.clearLine(5);
-            u8x8.setCursor(0, 5);
-            u8x8.printf("Reset counter   ");
+            #ifdef HAS_DISPLAY  
+                u8x8.clearLine(0); u8x8.clearLine(1); // clear Display counter
+                u8x8.clearLine(5);
+                u8x8.setCursor(0, 5);
+                u8x8.printf("Reset counter   ");
+            #endif
             break;
         case 2: // reset device to factory settings
             ESP_LOGI(TAG, "Remote command: reset device to factory settings");
-            u8x8.clearLine(5);
-            u8x8.setCursor(0, 5);
-            u8x8.printf("Factory reset   ");
+            #ifdef HAS_DISPLAY  
+                u8x8.clearLine(5);
+                u8x8.setCursor(0, 5);
+                u8x8.printf("Factory reset   ");
+            #endif
             eraseConfig();
             break;
         }
@@ -89,9 +95,11 @@ void set_reset(int val) {
 void set_rssi(int val) {
     cfg.rssilimit = val * -1;
     ESP_LOGI(TAG, "Remote command: set RSSI limit to %i", cfg.rssilimit);
-    u8x8.clearLine(5);
-    u8x8.setCursor(0, 5);
-    u8x8.printf(!cfg.rssilimit ? "RLIM:  off" : "RLIM: -%4i", cfg.rssilimit);
+    #ifdef HAS_DISPLAY  
+        u8x8.clearLine(5);
+        u8x8.setCursor(0, 5);
+        u8x8.printf(!cfg.rssilimit ? "RLIM:  off" : "RLIM: -%4i", cfg.rssilimit);
+    #endif
 };    
 
 void set_wifiscancycle(int val) {
@@ -137,7 +145,9 @@ void set_screensaver(int val) {
         case 1: cfg.screensaver = val; break;
         default: cfg.screensaver = 0; break;
         }
-    u8x8.setPowerSave(cfg.screensaver); // set display 0=on / 1=off
+    #ifdef HAS_DISPLAY  
+        u8x8.setPowerSave(cfg.screensaver); // set display 0=on / 1=off
+    #endif
 };
 
 void set_display(int val) {
@@ -146,7 +156,9 @@ void set_display(int val) {
         case 1: cfg.screenon = val; break;
         default: cfg.screenon = 0; break;
         }
-    u8x8.setPowerSave(!cfg.screenon); // set display 0=on / 1=off
+    #ifdef HAS_DISPLAY  
+        u8x8.setPowerSave(!cfg.screenon); // set display 0=on / 1=off
+    #endif
 };
 
 void set_lorasf(int val) {
@@ -170,7 +182,9 @@ void set_blescan(int val) {
         default:
             cfg.blescan = 0;
             btStop();
-            u8x8.clearLine(3); // clear BLE results from display
+            #ifdef HAS_DISPLAY  
+                u8x8.clearLine(3); // clear BLE results from display
+            #endif
             break;
         }
 };