Addressed PR review feedback

Author: root@rpi

README.md

@@ -309,6 +309,7 @@ See [CONTRIBUTING.md](./docs/CONTRIBUTING.md).
     [224]  GEO minim+ energy monitor
     [225]  TyreGuard 400 TPMS
     [226]  Kia TPMS (-s 1M)
+    [227]  TFA Dostmann 14.1504.V2 Radio-controlled grill and meat thermometer
 
 * Disabled by default, use -R n or a conf file to enable
 

conf/rtl_433.example.conf

@@ -448,6 +448,7 @@ stop_after_successful_events false
   protocol 224 # GEO minim+ energy monitor
   protocol 225 # TyreGuard 400 TPMS
   protocol 226 # Kia TPMS (-s 1M)
+  protocol 227 # TFA Dostmann 14.1504.V2 Radio-controlled grill and meat thermometer
 
 ## Flex devices (command line option "-X")
 

src/devices/tfa_14_1504_v2.c

@@ -52,9 +52,7 @@ Example payloads (excluding preamble):
 static int tfa_14_1504_v2_callback(r_device *decoder, bitbuffer_t *bitbuffer)
 {
     uint8_t const preamble[] = {
-            0xaa,
-            0xaa,
-            0x5c,
+            0xaa, 0xaa, 0x5c,
     };
 
     if (bitbuffer->num_rows != 1) {
@@ -105,7 +103,7 @@ static int tfa_14_1504_v2_callback(r_device *decoder, bitbuffer_t *bitbuffer)
     // we discard the last 2 bits as those are always zero
     uint16_t raw_temp_c = ((data[0] & 0xf) << 6) + (data[1] >> 2);
     unsigned is_probe_connected = (raw_temp_c != 0x1c0);
-    double temp_c = ((int)raw_temp_c) - 532;
+    float temp_c = ((int)raw_temp_c) - 532;
 
     /* clang-format off */
     data_t *output = data_make(