So I built this little circuit to detect when the voltage across the pack got down to around 4.25V per cell which is about the voltage when the battery pack is about halfway depleted and things could start going badly onboard. It also includes a 1.15V reference voltage.
The Max8211 can operate with supply voltages between 2.0V and 16.5V. I had encountered the Maxim 8211 comparator chip in a book “ Electronic Projects for Model Aircraft” by Ken Ginn. With only 4.8V to work with the LM311 was clearly not an option without adding an extra battery pack to run the comparator – which does not make sense. I was originally intending to use an LM311 comparator as I did for the 12v monitor, but the LM311 requires between 5V and 15V to run. LED On: Time for to change the batteries. So, to help me monitor the state of the batteries while in flight I have devised a small battery monitor that will light an LED when the voltage across the pack gets too low. Despite this I would rather not have my plane fall out of the sky because the batteries are depleted. Luckily the WickedWing XL is a very robust glider and hitting the ground at speed does not seem to damage it significantly. Past experience with the WickedWing XL has taught me that when the battery pack runs low, reception is lost and it falls out of the sky. If the internal buzzer is selected, you could set the button warning tone in RC-4 temperature data logger data management software.I have been building a slope soaring wing out of Corflute which will carry a four cell NiMh battery pack to power the receiver and servos. Each time press the button, it will shift among the display interfaces according to the sequence as described above. If the display has been turned off, short press the button to enter the display interface. If no operation within 15 minutes, the data logger will turn off the display automatically. temperature display, temperature upper limit display, temperature lower limit display. The data logger display interfaces includes: status display, record capacity display, time display, date display, Max. Note: RC-4 parameters setting is operated through computer, for the details, please see the help file of RC-4 temperature data logger data management software. For the details, please see “system mail setting” After data uploading, you could check data table, curve graph and report, and export them in format of Word/Excel/PDF/TXT.Click the icon “save data” to save the data to the computer data base click the icon “send mail” to send the data to the set mailboxes. It could cancel “Auto upload data” in the menu of “system setting”.ģ. Open RC-4 temperature data logger data management software, it will automatically upload the data log by default setting of software. Connect the data logger with computer via USB cable, after successfully connection, the icon shown in the LCD of data logger will light.Ģ. And this process will not clear the historical memory or stop record process if it is in the record status.ġ. The recorded data information could be accessed from the temperature data logger. Exit from RC-4 temperature data logger data management software. Hold and press the button of data logger for above 4 seconds,the symbol“ ”will light, which means recording is started, then click “upload data” to check the data.ĥ. After finish the parameters setting, click "save" button to save all the parameters and exit from parameter setting interface.Ĥ. After checking the information, exit from connection interface.ģ.
Open RC-4 temperature data logger data management software, after data logger connects with PC, it will upload information automatically.
#Rc battery logger install#
Connect RC-4 with computer via USB, and install USB driver according to the Installation Tips.Ģ. Install RC-4 temperature data logger data management software. Battery life: in normal temperature, if the record interval sets as 15 minutes, it could be used above one year.ġ. Power supply:inner CR2450 battery or power supply via USB interface ġ1. Communication interface:USB interface ġ0. Temperature measuring range:-30☌~+60☌ for optional external sensor, -40☌~+85☌ ģ.Ambient environmental temperature: -30☌~+60☌ ħ.
Product size: 84mm (length) X 44mm (width) X 20 mm (height)Ģ. This data logger is mainly used for temperature recording during storage and transportation of foodstuff, medicine, chemicals and other products, especially widely used in all links of warehousing, logistics and cold chain, such as refrigerated containers, refrigerated trucks, refrigerated package, cold storage, laboratory, etc. RC-4 Mini Temperature Data Logger Operation Instruction
The largest cold chain networking product research and manufacturing enterprise in Asia JIANGSU JINGCHUANG ELECTRONICS CO., LTD - Elitech
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