diff --git a/src/TTNv3/plain_decodeUplink.js b/src/TTNv3/plain_decodeUplink.js
index 6334c1c3..bb8004af 100644
--- a/src/TTNv3/plain_decodeUplink.js
+++ b/src/TTNv3/plain_decodeUplink.js
@@ -104,7 +104,7 @@ function decodeUplink(input) {
     }
 
     data.bytes = input.bytes; // comment out if you do not want to include the original payload
-    data.port = input.fPort; // comment out if you do not want to inlude the port
+    data.port = input.fPort; // comment out if you do not want to include the port
 
     return {
         data: data,
diff --git a/src/hal/heltecv21.h b/src/hal/heltecv21.h
new file mode 100644
index 00000000..9586edfd
--- /dev/null
+++ b/src/hal/heltecv21.h
@@ -0,0 +1,49 @@
+// clang-format off
+// upload_speed 921600
+// board heltec_wifi_lora_32_V2
+
+#ifndef _HELTECV21_H
+#define _HELTECV21_H
+
+#include <stdint.h>
+
+// Hardware related definitions for Heltec V2.1 LoRa-32 Board
+// see https://heltec-automation-docs.readthedocs.io/en/latest/esp32/wifi_lora_32/hardware_update_log.html#v2-1
+
+//#define HAS_BME 1 // Enable BME sensors in general
+//#define HAS_BME680 GPIO_NUM_4, GPIO_NUM_15 // SDA, SCL
+//#define BME680_ADDR BME680_I2C_ADDR_PRIMARY // connect SDIO of BME680 to GND 
+//#define HAS_BMP180
+//#define BMP180_ADDR 0x77
+
+#define HAS_LORA 1       // comment out if device shall not send data via LoRa
+#define CFG_sx1276_radio 1
+
+#define HAS_DISPLAY 1 // OLED-Display on board
+#define HAS_LED LED_BUILTIN                           // white LED on board
+#define HAS_BUTTON KEY_BUILTIN                        // button "PROG" on board
+
+#define BAT_MEASURE_ADC ADC1_GPIO37_CHANNEL  // battery probe GPIO pin
+#define BAT_VOLTAGE_DIVIDER 2 // voltage divider 220k/100k on board
+
+// switches battery power and Vext, switch logic 0 = on / 1 = off
+#define EXT_POWER_SW Vext
+#define EXT_POWER_ON 0
+
+// Pins for I2C interface of OLED Display
+#define MY_DISPLAY_SDA SDA_OLED
+#define MY_DISPLAY_SCL SCL_OLED
+#define MY_DISPLAY_RST RST_OLED
+
+// Pins for LORA chip SPI interface come from board file, we need some
+// additional definitions for LMIC
+#define LORA_IRQ DIO0
+#define LORA_IO1 DIO1
+#define LORA_IO2 DIO2
+#define LORA_SCK SCK
+#define LORA_MISO MISO
+#define LORA_MOSI MOSI
+#define LORA_RST RST_LoRa
+#define LORA_CS SS
+
+#endif