diff --git a/bin/build-all.sh b/bin/build-all.sh
index 922fd4b7d..1cf83c62f 100755
--- a/bin/build-all.sh
+++ b/bin/build-all.sh
@@ -5,7 +5,7 @@ set -e
 VERSION=`bin/buildinfo.py long`
 SHORT_VERSION=`bin/buildinfo.py short`
 
-BOARDS_ESP32="tlora-v2 tlora-v1 tlora_v1_3 tlora-v2-1-1.6 tbeam heltec-v2.0 heltec-v2.1 tbeam0.7 meshtastic-diy-v1"
+BOARDS_ESP32="tlora-v2 tlora-v1 tlora_v1_3 tlora-v2-1-1.6 tbeam heltec-v1 heltec-v2.0 heltec-v2.1 tbeam0.7 meshtastic-diy-v1"
 #BOARDS_ESP32=tbeam
 
 # FIXME note nrf52840dk build is for some reason only generating a BIN file but not a HEX file nrf52840dk-geeksville is fine
diff --git a/platformio.ini b/platformio.ini
index 1d35ddeb9..9c301ea33 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -12,6 +12,7 @@
 default_envs = tbeam
 ;default_envs = tbeam0.7
 ;default_envs = heltec-v2.0
+;default_envs = heltec-v1
 ;default_envs = tlora-v1
 ;default_envs = tlora_v1_3
 ;default_envs = tlora-v2
@@ -158,6 +159,13 @@ board = ttgo-t-beam
 build_flags = 
   ${esp32_base.build_flags} -D TBEAM_V07
 
+[env:heltec-v1]
+;build_type = debug ; to make it possible to step through our jtag debugger 
+extends = esp32_base
+board = heltec_wifi_lora_32
+build_flags = 
+  ${esp32_base.build_flags} -D HELTEC_V1
+
 [env:heltec-v2.0]
 ;build_type = debug ; to make it possible to step through our jtag debugger 
 extends = esp32_base
diff --git a/src/configuration.h b/src/configuration.h
index f2fc060d6..89fa106ff 100644
--- a/src/configuration.h
+++ b/src/configuration.h
@@ -324,6 +324,41 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #endif
 
+#elif defined(ARDUINO_HELTEC_WIFI_LORA_32)
+
+// the default ESP32 Pin of 15 is the Oled SCL, set to 36 and 37 and works fine.
+// Tested on Neo6m module.
+#undef GPS_RX_PIN
+#undef GPS_TX_PIN
+#define GPS_RX_PIN 36
+#define GPS_TX_PIN 37
+
+#ifndef USE_JTAG  // gpio15 is TDO for JTAG, so no I2C on this board while doing jtag
+#define I2C_SDA 4 // I2C pins for this board
+#define I2C_SCL 15
+#endif
+
+#define RESET_OLED 16 // If defined, this pin will be used to reset the display controller
+
+#define LED_PIN 25     // If defined we will blink this LED
+#define BUTTON_PIN 0   // If defined, this will be used for user button presses
+
+#define USE_RF95
+#define LORA_DIO0 26 // a No connect on the SX1262 module
+#ifndef USE_JTAG
+#define LORA_RESET 14
+#endif
+#define LORA_DIO1 33 // Not really used
+#define LORA_DIO2 32 // Not really used
+
+// ratio of voltage divider = 3.20 (R1=100k, R2=220k)
+#define ADC_MULTIPLIER 3.2
+
+// This string must exactly match the case used in release file names or the android updater won't work
+#define HW_VENDOR HardwareModel_HELTEC_V1
+
+#define BATTERY_PIN 13 // A battery voltage measurement pin, voltage divider connected here to measure battery voltage
+
 #elif defined(TLORA_V1)
 // This string must exactly match the case used in release file names or the android updater won't work
 #define HW_VENDOR HardwareModel_TLORA_V1
diff --git a/src/mesh/generated/mesh.pb.h b/src/mesh/generated/mesh.pb.h
index 27e7d53cd..c5c980a35 100644
--- a/src/mesh/generated/mesh.pb.h
+++ b/src/mesh/generated/mesh.pb.h
@@ -23,6 +23,7 @@ typedef enum _HardwareModel {
     HardwareModel_TLORA_V1_1p3 = 8,
     HardwareModel_RAK4631 = 9,
     HardwareModel_HELTEC_V2_1 = 10,
+    HardwareModel_HELTEC_V1 = 11,
     HardwareModel_LORA_RELAY_V1 = 32,
     HardwareModel_NRF52840DK = 33,
     HardwareModel_PPR = 34,
diff --git a/src/sleep.cpp b/src/sleep.cpp
index 558dbf1d4..998645dcd 100644
--- a/src/sleep.cpp
+++ b/src/sleep.cpp
@@ -65,7 +65,11 @@ void setCPUFast(bool on)
         return;
     }
 
-    setCpuFrequencyMhz(on ? 240 : 80);
+    // The Heltec LORA32 V1 runs at 26 MHz base frequency and doesn't react well to switching to 80 MHz...
+    #ifndef ARDUINO_HELTEC_WIFI_LORA_32
+        setCpuFrequencyMhz(on ? 240 : 80);
+    #endif
+    
 #endif
 }