diff --git a/hardware/README.md b/hardware/README.md
index a2e20201..b37dcb8e 100644
--- a/hardware/README.md
+++ b/hardware/README.md
@@ -16,13 +16,18 @@ You can also use a ESP based development board and combine this with a M-Bus mod
 
 ### ESP8266 based boards
 
-[Wemos D1 mini](https://docs.wemos.cc/en/latest/d1/d1_mini.html) - M-Bus connected to GPIO 5
+[Wemos D1 mini](https://docs.wemos.cc/en/latest/d1/d1_mini.html)
+- M-Bus connected to GPIO5 (D1)
+- Jump GPIO4 (D2) to GND to force AP mode during boot
 
 ### ESP32 based boards
 
-[Wemos D32](https://docs.wemos.cc/en/latest/d32/d32.html) - M-Bus connected to GPIO 21
+[Wemos D32](https://docs.wemos.cc/en/latest/d32/d32.html) 
+- M-Bus connected to GPIO21
+- Jump GPIO4 to GND to force AP mode during boot
 
-[Adafruit HUZZAH32](https://www.adafruit.com/product/3405) - M-Bus connected to RX
+[Adafruit HUZZAH32](https://www.adafruit.com/product/3405) 
+- M-Bus connected to RX
 
 
 Combine one of above board with an M-Bus module. Connect 3.3v and GND together between the boards and connect the TX pin from the M-Bus board to the dedicated M-Bus pin on the ESP board.
diff --git a/src/AmsToMqttBridge.h b/src/AmsToMqttBridge.h
index 144d7c3c..0b984c9f 100644
--- a/src/AmsToMqttBridge.h
+++ b/src/AmsToMqttBridge.h
@@ -23,7 +23,7 @@ HardwareSerial *hanSerial = &Serial;
 #elif defined(ARDUINO_LOLIN_D32)
 #define LED_PIN 5
 #define LED_ACTIVE_HIGH 0
-#define AP_BUTTON_PIN INVALID_BUTTON_PIN
+#define AP_BUTTON_PIN 4
 
 #define SOFTWARE_SERIAL 1
 #include <SoftwareSerial.h>
@@ -31,9 +31,9 @@ SoftwareSerial *hanSerial = new SoftwareSerial(GPIO_NUM_21);
 
 // Build settings for Wemos D1 mini
 #elif defined(ARDUINO_ESP8266_WEMOS_D1MINI)
-#define LED_PIN LED_BUILTIN
+#define LED_PIN D4
 #define LED_ACTIVE_HIGH 0
-#define AP_BUTTON_PIN INVALID_BUTTON_PIN
+#define AP_BUTTON_PIN D2
 
 #define SOFTWARE_SERIAL 1
 #include <SoftwareSerial.h>