Add support for CAN bus and Freedom Won Battery Management System by Marius Bezuidenhout (#12651)

CHANGELOG.md

@@ -6,6 +6,7 @@ All notable changes to this project will be documented in this file.
 ## [9.5.0.3]
 ### Added
 - Command ``SetSensor1..127 0|1`` to globally disable individual sensor driver
+- Support for CAN bus and Freedom Won Battery Management System by Marius Bezuidenhout (#12651)
 
 ## [9.5.0.2] 20210714
 ### Added

RELEASENOTES.md

@@ -110,6 +110,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl http://ota.tasmo
 - MQTT minimum password length restriction in GUI [#12553](https://github.com/arendst/Tasmota/issues/12553)
 - Support for Technoline WS2300-15 Anemometer [#12573](https://github.com/arendst/Tasmota/issues/12573)
 - Support for Telaire T6700 Series CO2 sensor by Alexander Savchenko [#12618](https://github.com/arendst/Tasmota/issues/12618)
+- Support for CAN bus and Freedom Won Battery Management System by Marius Bezuidenhout [#12651](https://github.com/arendst/Tasmota/issues/12651)
 
 ### Changed
 - ESP32 core library from v1.0.6 to v1.0.7.1

tasmota/support_features.ino

@@ -738,19 +738,21 @@ void ResponseAppendFeatures(void)
     feature8 |= 0x00000008;  // xdrv_52_9_berry.ino
 #endif
 #if defined(USE_I2C) && defined(USE_BM8563)
-    feature8 |= 0x00000010;
+    feature8 |= 0x00000010;  // xdrv_56_BM8563_RTC.ino
 #endif
 #if defined(USE_ENERGY_SENSOR) && defined(USE_ENERGY_DUMMY)
-    feature8 |= 0x00000020;
+    feature8 |= 0x00000020;  // xnrg_20_dummy.ino
 #endif
 #if defined(USE_I2C) && defined(USE_AM2320)
-    feature8 |= 0x00000040;
+    feature8 |= 0x00000040;  // xsns_88_am2320.ino
 #endif
 #if defined(USE_I2C) && defined(USE_T67XX)
-    feature8 |= 0x00000080;
+    feature8 |= 0x00000080;  // xsns_89_t67xx.ino
 #endif
 
-//    feature8 |= 0x00000100;
+#if defined(USE_SPI) && defined(USE_MCP2515)
+    feature8 |= 0x00000100;  // xsns_87_mcp2515.ino
+#endif
 //    feature8 |= 0x00000200;
 //    feature8 |= 0x00000400;
 //    feature8 |= 0x00000800;

tasmota/xsns_87_mcp2515.ino

@@ -1,7 +1,7 @@
 /*
-  xsns_89_mcp2515.ino - MCP2515 CAN bus support for Tasmota
+  xsns_87_mcp2515.ino - MCP2515 CAN bus support for Tasmota
 
-  Copyright (C) 2021 Marius Bezuidenhout
+  Copyright (C) 2021  Marius Bezuidenhout
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -34,9 +34,7 @@
  *  VCC     Vin/5V
 \*********************************************************************************************/
 
-#define XSNS_90              90
-
-#include "mcp2515.h"
+#define XSNS_87              87
 
 // set defaults if not defined
 #ifndef MCP2515_BITRATE
@@ -67,6 +65,8 @@
   #endif  // MCP2515_BMS_FREEDWON
 #endif // MCP2515_BMS_CLIENT
 
+#include "mcp2515.h"
+
 #ifdef MCP2515_BMS_CLIENT
 struct BMS_Struct {
   uint16_t  stateOfCharge;
@@ -100,7 +100,7 @@ void MCP2515_Init(void) {
     AddLog(LOG_LEVEL_ERROR, PSTR("MCP2515: Failed to set module bitrate"));
     mcp2515_init_status = 0;
   }
-  
+
   if (mcp2515_init_status && MCP2515::ERROR_OK != mcp2515->setNormalMode()) {
     AddLog(LOG_LEVEL_ERROR, PSTR("MCP2515: Failed to set normal mode"));
     mcp2515_init_status = 0;
@@ -221,8 +221,8 @@ void MCP2515_Show(bool Json) {
     if (lastFrameRecv > 0 && TasmotaGlobal.uptime - lastFrameRecv <= MCP2515_TIMEOUT ) {
 #ifdef MCP2515_BMS_CLIENT
     ResponseAppend_P(PSTR(",\"MCP2515\":{\"SOC\":%d,\"SOH\":%d}"), \
-      bms.stateOfCharge, 
-      bms.stateOfHealth 
+      bms.stateOfCharge,
+      bms.stateOfHealth
       );
 #endif // MCP2515_BMS_CLIENT
     }
@@ -245,7 +245,7 @@ void MCP2515_Show(bool Json) {
  * Interface
 \*********************************************************************************************/
 
-bool Xsns90(uint8_t function)
+bool Xsns87(uint8_t function)
 {
   bool result = false;
 

tools/decode-status.py

@@ -255,7 +255,7 @@ a_features = [[
     ],[
     "USE_MPU_ACCEL","USE_TFMINIPLUS","USE_CSE7761","USE_BERRY",
     "USE_BM8563","USE_ENERGY_DUMMY","USE_AM2320","USE_T67XX",
-    "","","","",
+    "USE_MCP2515","","","",
     "","","","",
     "","","","",
     "","","","",
@@ -288,7 +288,7 @@ else:
         obj = json.load(fp)
 
 def StartDecode():
-    print ("\n*** decode-status.py v20210713 by Theo Arends and Jacek Ziolkowski ***")
+    print ("\n*** decode-status.py v20210717 by Theo Arends and Jacek Ziolkowski ***")
 
 #    print("Decoding\n{}".format(obj))