Victron MPPT data using Arduino serial - Revision history

EdmondLascaris: /* State of Charge Calibration for Victron 12V 8Ah Deep Cycle AGM Battery */

2023-10-25T19:01:54Z

State of Charge Calibration for Victron 12V 8Ah Deep Cycle AGM Battery

← Older revision		Revision as of 19:01, 25 October 2023
Line 1,862:		Line 1,862:

	</syntaxhighlight>		</syntaxhighlight>

			= Sending Weather Data to Arduino =
			* Data, such as weather data, can be uploaded from a Raspberry Pi to an Arduino via XBee.
			* This allows finer control or heating or cooling cycles.
			* For example if a series of hot days is predicted, then heating can be minimised.
			* [https://learn.sparkfun.com/tutorials/xbee-shield-hookup-guide/all#example-communication-test Example Communication Test]

	= State of Charge Calibration for Victron 12V 8Ah Deep Cycle AGM Battery =		= State of Charge Calibration for Victron 12V 8Ah Deep Cycle AGM Battery =

EdmondLascaris: /* Full code */

2023-10-24T19:46:10Z

Full code

← Older revision		Revision as of 19:46, 24 October 2023
Line 1,393:		Line 1,393:

	[[File:Screenshot 2023-07-10 at 6.04.15 am.png \| 900px]]		[[File:Screenshot 2023-07-10 at 6.04.15 am.png \| 900px]]

			== Full code - Updated 25 Oct 2023 ==

			<syntaxhighlight lang="python">
			#!/usr /bin/env python3
			import serial
			import time
			import datetime
			import requests


			if __name__ == '__main__':
			ser = serial.Serial('/dev/ttyUSB0', 9600, timeout=1)
			ser.reset_input_buffer()
			count = 0

			while True:
			if ser.in_waiting > 0:
			#print(count)
			time.sleep(0.1)
			print()
			now = datetime.datetime.now()
			date_stamp = now.strftime("%Y-%m-%d %H:%M:%S")
			print(f'The current date and time is {date_stamp}')

			try:
			line = ser.readline().decode('utf-8').rstrip()

			print(f"Data separated using commas {line.split(',')}")
			mylist = line.split(',')
			#print(f'My List {mylist}')

			V = mylist[0] ## Battery Voltage (nV)
			VPV = mylist[1] ## Solar Panel Voltage (mV)
			PPV = mylist[2] ## Solar Panel Power (W)
			IL = mylist[3] ## Load Current (mA)

			print(f'Battery voltage {V}, Solar Panel voltage {VPV}')
			print(f'Solar Panel power {PPV}, Load current {IL}')
			except:
			V = "0"
			VPV = "0"
			PPV = "0"
			IL = "0"
			print("Read serial fail")

			count += 1
			if count > 0:
			# Save data
			print("Saving data")
			data = date_stamp + "," + V + "," + VPV + "," + PPV + "," + IL + "\n"
			print(f'DATA = {data}')
			f = open('/home/pi/MPPT_Pb/MPPT_data.txt','a')
			f.write(data)
			f.close()
			print("Data saved")
			count = 0

			# Dweet data
			try:
			print("Preparing dweet")
			dweet_dict = {}
			dweet_dict.update({"V": str(V)})
			dweet_dict.update({"VPV": str(VPV)})
			dweet_dict.update({"PPV": str(PPV)})
			dweet_dict.update({"IL": str(IL)})
			dweet_dict.update({"datetime": str(date_stamp)})
			url = "https://dweet.io/dweet/for/3083-MPPT-Xbee1-SMC?"
			x = requests.post(url, json=dweet_dict)
			print(x.text)
			except:
			print("Dweet failed")
			# check dweet with - https://dweet.io/get/latest/dweet/for/3083-MPPT-Xbee1
			</syntaxhighlight>

	== Full Code - Plot Battery (V) data - Updated 25 Oct 2023 ==		== Full Code - Plot Battery (V) data - Updated 25 Oct 2023 ==

EdmondLascaris: /* Full Code - Updated 25 Oct 2023 */

2023-10-24T19:44:55Z

Full Code - Updated 25 Oct 2023

@@ Line 1,394: / Line 1,394: @@
 [[File:Screenshot 2023-07-10 at 6.04.15 am.png | 900px]]
-== Full Code - Updated 25 Oct 2023 ==
+== Full Code - Plot Battery (V) data  - Updated 25 Oct 2023 ==
 <syntaxhighlight lang="python">
 </syntaxhighlight>
 = XBee - MPPT - Error Logs =

EdmondLascaris: /* Full code */

2023-10-24T18:43:27Z

Full code

← Older revision		Revision as of 18:43, 24 October 2023
Line 1,393:		Line 1,393:

	[[File:Screenshot 2023-07-10 at 6.04.15 am.png \| 900px]]		[[File:Screenshot 2023-07-10 at 6.04.15 am.png \| 900px]]

			== Full Code - Updated 25 Oct 2023 ==

			<syntaxhighlight lang="python">

			</syntaxhighlight>

	= XBee - MPPT - Error Logs =		= XBee - MPPT - Error Logs =

EdmondLascaris: /* XBee - MPPT - Plotting data */

2023-10-23T20:06:40Z

XBee - MPPT - Plotting data

← Older revision		Revision as of 20:06, 23 October 2023
Line 1,248:		Line 1,248:

	= XBee - MPPT - Plotting data =		= XBee - MPPT - Plotting data =

			* New plotly method - to update

	* The following imports are required to plot data		* The following imports are required to plot data
	** '''import plotly'''		** '''import plotly'''

EdmondLascaris: /* XBee - MPPT - Dweet data */

2023-10-23T20:05:44Z

XBee - MPPT - Dweet data

← Older revision		Revision as of 20:05, 23 October 2023
Line 1,147:		Line 1,147:
	= XBee - MPPT - Dweet data =		= XBee - MPPT - Dweet data =
	* '''import requests''' required to Dweet data		* '''import requests''' required to Dweet data
			* Added '''datetime''' stamp to dweeted data

	<syntaxhighlight lang="python">		<syntaxhighlight lang="python">
Line 1,158:		Line 1,159:
	dweet_dict.update({"PPV": str(PPV)})		dweet_dict.update({"PPV": str(PPV)})
	dweet_dict.update({"IL": str(IL)})		dweet_dict.update({"IL": str(IL)})
			dweet_dict.update({"datetime": str(date_stamp)})
	url = "https://dweet.io/dweet/for/3083-MPPT-Xbee1?"		url = "https://dweet.io/dweet/for/3083-MPPT-Xbee1?"
	x = requests.post(url, json=dweet_dict)		x = requests.post(url, json=dweet_dict)
Line 1,232:		Line 1,234:
	dweet_dict.update({"PPV": str(PPV)})		dweet_dict.update({"PPV": str(PPV)})
	dweet_dict.update({"IL": str(IL)})		dweet_dict.update({"IL": str(IL)})
			dweet_dict.update({"datetime": str(date_stamp)})
	url = "https://dweet.io/dweet/for/3083-MPPT-Xbee1?"		url = "https://dweet.io/dweet/for/3083-MPPT-Xbee1?"
	x = requests.post(url, json=dweet_dict)		x = requests.post(url, json=dweet_dict)

EdmondLascaris: /* Put XBee to Sleep to Conserve Power */

2023-10-23T19:17:34Z

Put XBee to Sleep to Conserve Power

← Older revision		Revision as of 19:17, 23 October 2023
Line 693:		Line 693:
	* The ATmega328 can not only source current, it can also sink up to about 40 mA of current which is more than enough to bring the voltage on the XBee’s pin 9 low and wake the XBee from hibernation.		* The ATmega328 can not only source current, it can also sink up to about 40 mA of current which is more than enough to bring the voltage on the XBee’s pin 9 low and wake the XBee from hibernation.
	* Below is an outline of the Arduino code I use. I’ve incorporated this code into a larger routine that uses the watchdog timer to put the ATmega328 to sleep too.		* Below is an outline of the Arduino code I use. I’ve incorporated this code into a larger routine that uses the watchdog timer to put the ATmega328 to sleep too.

			'''Set up without Pin Hibernation'''

			[[File:Screenshot 2023-10-24 at 6.15.09 am.png \| 900px]]

			'''Close up of Arduino Set-up WITH Pin Hibernation'''

	[[File:Screenshot 2023-10-24 at 6.12.23 am.png \| 900px]]		[[File:Screenshot 2023-10-24 at 6.12.23 am.png \| 900px]]

EdmondLascaris: /* Put XBee to Sleep to Conserve Power */

2023-10-23T19:15:52Z

Put XBee to Sleep to Conserve Power

← Older revision		Revision as of 19:15, 23 October 2023
Line 693:		Line 693:
	* The ATmega328 can not only source current, it can also sink up to about 40 mA of current which is more than enough to bring the voltage on the XBee’s pin 9 low and wake the XBee from hibernation.		* The ATmega328 can not only source current, it can also sink up to about 40 mA of current which is more than enough to bring the voltage on the XBee’s pin 9 low and wake the XBee from hibernation.
	* Below is an outline of the Arduino code I use. I’ve incorporated this code into a larger routine that uses the watchdog timer to put the ATmega328 to sleep too.		* Below is an outline of the Arduino code I use. I’ve incorporated this code into a larger routine that uses the watchdog timer to put the ATmega328 to sleep too.

			[[File:Screenshot 2023-10-24 at 6.12.23 am.png \| 900px]]

	== Example Code for XBee Sleep ==		== Example Code for XBee Sleep ==

EdmondLascaris: /* Full code - most recent - 24 Oct 2023 */

2023-10-23T18:58:36Z

Full code - most recent - 24 Oct 2023

← Older revision		Revision as of 18:58, 23 October 2023
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	== Full code - most recent - 24 Oct 2023 ==		== Full code - most recent - 24 Oct 2023 ==
			* This code listens for data transmissions from the XBee.
			* The XBee will only send data once every 5 minutes.
			* The XBee module sleeps between data transmissions to save energy.

	<syntaxhighlight lang="python">		<syntaxhighlight lang="python">

EdmondLascaris: /* Full code - most recent */

2023-10-23T18:57:21Z

Full code - most recent

← Older revision		Revision as of 18:57, 23 October 2023
Line 996:		Line 996:


	== Full code - most recent ==		== Full code - most recent - 24 Oct 2023 ==
	<syntaxhighlight lang="python">		<syntaxhighlight lang="python">