Component: Energy Monitor (PZEM-004T) (Electrical) - Revision history

MartinW: /* Examples */

2023-07-29T11:37:31Z

Examples

2023-07-27T14:14:35Z

Examples

2023-07-23T13:58:36Z

Examples

2023-07-23T13:57:41Z

Examples

2023-07-22T12:03:12Z

Examples

2023-07-22T10:51:51Z

Examples

2023-07-22T10:46:05Z

Examples

2023-07-22T10:45:11Z

Examples

2023-07-20T06:49:30Z

Examples

2023-07-20T06:48:39Z

Examples

@@ Line 55: / Line 55: @@
 This example uses the Arduino Uno and outputs UART via the Timer UART component on pin D2 at a baud rate of 19200.
-All the functions are the same as above but no display is used.
+All the functions also include a Backpack LCD.
 D3 and D4 have pullups so no external resistors are required.
@@ Line 63: / Line 65: @@
 You will require A TTL UART to USB converter to view the data as the one built-in to the Uno is used for the MODBUS of the power monitor
-{{Fcfile|Arduino_Uno_Mains_PM_v1.0.fcfx |Arduino Uno Mains PM v1.0}}
+{{Fcfile|Arduino_Uno_Mains_PM_LCDv1.2.fcfx|Arduino Uno Mains PM v1.2}}
 ==Macro reference==

← Older revision		Revision as of 14:14, 27 July 2023
Line 36:		Line 36:
	'''If using an Uno, the PZEM-004T must be disconnected from the RX prior to programming. After reconnecting press the Reset button on the Uno.'''		'''If using an Uno, the PZEM-004T must be disconnected from the RX prior to programming. After reconnecting press the Reset button on the Uno.'''

−	'''If using a morocontroller that have 3V tolerant pins only, e.g ESP32, then connect the supply going to the PZEM-004T to 3v and not 5V.'''	+	'''<span style="color:red;">If using a morocontroller that have 3V tolerant pins only, e.g ESP32, then connect the supply going to the PZEM-004T to 3v and not 5V.</span>'''

@@ Line 42: / Line 42: @@
 This example program uses a PZEM-004T energy monitor to monitor mains voltage, current, frequency, power factor, energy, and over-threshold power alarm.
 The alarm threshold is set within properties.
 Initialiasion returns 0 if PZEM-004T is detected or 255 if it is not.
 Values are sent to the ESP32 TTGO display which uses a ST7789v1 GLCD.
@@ Line 52: / Line 54: @@
 This example uses the Arduino Uno and outputs UART via the Timer UART component on pin D2 at a baud rate of 19200.
 All the functions are the same as above but no display is used.
 D3 and D4 have pullups so no external resistors are required.
 Each switch is pulled to GND to trigger.
 You will require A TTL UART to USB converter to view the data as the one built-in to the Uno is used for the MODBUS of the power monitor
 {{Fcfile|Arduino_Uno_Mains_PM_v1.0.fcfx |Arduino Uno Mains PM v1.0}}

@@ Line 37: / Line 37: @@
 '''If using a morocontroller  that have 3V tolerant pins only, e.g ESP32, then connect the supply going to the PZEM-004T to 3v and not 5V.'''
 '''<span style="color:red;">WARNING: MAINS CAN KILL. ONLY TRY THIS IF YOU ARE EXPERIENCED WITH MAINS ELECTRICITY. WIRE AT YOUR OWN RISK!</span>'''
@@ Line 54: / Line 55: @@
 D3 and D4 have pullups so no external resistors are required.
 Each switch is pulled to GND to trigger.
+You will require A TTL UART to USB converter to view the data as the one built-in to the Uno is used for the MODBUS of the power monitor
 {{Fcfile|Arduino_Uno_Mains_PM_v1.0.fcfx |Arduino Uno Mains PM v1.0}}

@@ Line 28: / Line 28: @@
 '''Notes: if there is a communication issue after initialisation, then just 9's will be returned!'''
 '''The TX of the PZEM-004T energy monitor goes to RX of the microcontroller'''
-'''The RX of the PZEM-004T energy monitor goes to TX of the microcontroller'''
+'''The RX of the PZEM-004T energy monitor goes to TX of the microcontroller.'''
-'''If using an Uno, the PZEM-004T must be disconnected from the RX prior to programming. After reconnecting press the Reset button on the Uno'''
+'''If using an Uno, the PZEM-004T must be disconnected from the RX prior to programming. After reconnecting press the Reset button on the Uno.'''
-'''If using a morocontroller  that have 3V tolerant pins only, e.g ESP32, then connect the supply going to the PZEM-004T to 3v and not 5V'''
+'''If using a morocontroller  that have 3V tolerant pins only, e.g ESP32, then connect the supply going to the PZEM-004T to 3v and not 5V.'''
 '''<span style="color:red;">WARNING: MAINS CAN KILL. ONLY TRY THIS IF YOU ARE EXPERIENCED WITH MAINS ELECTRICITY. WIRE AT YOUR OWN RISK!</span>'''

@@ Line 36: / Line 36: @@
 '''If using a morocontroller  that have 3.3V tolerant pins only, e.g ESP32, then connect the supply going to the PZEM-004T to 3.3v and not 5V'''
-'''<span style="color:red;">WARNING: MAINS CAN KILL. ONLY TRY THIS IF ARE EXPERIENCED WITH MAINS ELECTRICITY. WIRE AT YOUR OWN RISK!</span>'''
+'''<span style="color:red;">WARNING: MAINS CAN KILL. ONLY TRY THIS IF YOU ARE EXPERIENCED WITH MAINS ELECTRICITY. WIRE AT YOUR OWN RISK!</span>'''
 This example program uses a PZEM-004T energy monitor to monitor mains voltage, current, frequency, power factor, energy, and over-threshold power alarm.

@@ Line 29: / Line 29: @@
 '''Notes: if there is a communication issue after initialisation, then just 9's will be returned!'''
-'''The TX of the PZEM-004T energy monitor goes to RX of the Arduino Uno '''
+'''The TX of the PZEM-004T energy monitor goes to RX of the microcontroller'''
-'''The RX of the PZEM-004T energy monitor goes to TX of the Arduino Uno '''
+'''The RX of the PZEM-004T energy monitor goes to TX of the microcontroller'''
-'''The PZEM-004T must be disconnected from the RX of the Uno prior to programming. After reconnecting press the Reset button on the Uno'''
+'''If uisng an Uno, the PZEM-004T must be disconnected from the RX prior to programming. After reconnecting press the Reset button on the Uno'''
 '''<span style="color:red;">WARNING: MAINS CAN KILL. ONLY TRY THIS IF ARE EXPERIENCED WITH MAINS ELECTRICITY. WIRE AT YOUR OWN RISK!</span>'''