Battery Monitor Dual Voltmeter ammeter power capacity meter QC2.0 QC3.0 PD test

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Seller: 2019happyday (263) 99.4%, Location: 深圳市, Ships to: Worldwide, Item: 113832985054 Battery Monitor Dual Voltmeter ammeter power capacity meter QC2.0 QC3.0 PD test Description5V voltage supply, Measuring voltage range 0~36V, Current 0~5A, two wayOverall performance: 1, using 2.6 吋 320X240 resolution high score IPS screen display, than the original 220X176 display effect will not say. 2, voltage 27K to 2.7K 1:11 partial pressure, so the voltage range 3.3*11=36.3V, using the 12-bit AD of the single-chip microcomputer, so the sampling resolution is 36.3V/4096=0.00886V, because the accuracy of AD is +- 3LSB, although the use of oversampling and other means to ensure accuracy, but within +-0.027V jitter is normal accuracy; (this range refers to the measurement of the battery, in fact, 27mV many power supply ripple can not be guaranteed); 3, the current uses 25 milliohms of sampling resistance, the op amp amplification resistor divider ratio is: 1.5K: 27K, that is, amplification 19 times, so the calculated current is about 6.9A, in order to ensure a certain margin, we define the header The full production is 5A; the same current resolution is about 1.7mA, +-3LSB is +-5.4mA; 4, dual-channel common ground design, the meter uses +5V power supply, can be accessed by the serial port, but the power ground must be connected by MainGND, otherwise it will lead to measurement inaccuracy; 5. The position of the A004 module is still reserved on the board, so that the power supply range of the meter head can be extended to 28V (data data, the actual recommendation is not more than 24V), so that the power can be "stealed" from the measured voltage; 6, on-board dual-channel MOS, you can set the upper and lower limits of voltage and current through GPU statements, and can control MOS tube, which is convenient for temperature-controlled instruments; 7, dual-channel with AH, WH measurement, with MOS tube, in fact, it is easy to make a similar lithium battery discharge capacity test procedures; Self-DIY change shunt can reach 60V 50A note: 1, the thick line represents the power line, take a large current, if the 5A circuit, ensure that the line and pad of the thick line part can withstand 5A current for a long time; 2, two roads in common; the power supply can also be replaced by 1 way, with 2 load; 3. When the supplied power is not adjustable, and the voltage >7V is less than 28V, the DC-DC module (model: A004) can be used to supply power to the meter after step-down, and the position of the module is reserved on the board; the capacitor is 6.3V. 330uf solid capacitor; note that if you connect A004, you can't use 5V to supply power; 4, because the 5V of the power supply is connected to 1117 to 3.3V, and 5V is directly connected to OP07, and these two devices can work normally below 10V, so 5V can be connected to a slightly higher point, such as (6V), but be sure Stable, otherwise OP07 offset at different voltages, resulting in the need for recalibration; it is recommended to use the A004 module to stabilize 5V; Since this product is based on Usart-GPU, all the interfaces can be completely customized by GpuMaker in the evening, which is suitable for products. For example, the large-word display interface is completed with the following statement: CLS(0); SCC (60, 6405); SCC (59, 44373); SBC (60); BOXF (0,0,399,40,60); DS24 (60, 6, 'single voltage and current meter (IN1)', 15); SBC(0); DS24 (50, 135, 'voltage (V)', 15); DS24 (200, 135, 'current (A)', 15); DS16 (15, 215, 'power (W)', 8); DS16 (88, 215, 'internal resistance (Ω)', 8); DS16 (180, 215, 'cumulative (A.H) (W.H)', 8); FI; LABL (64, 20, 68, 160, '{0C, 4}', 2, 0); LABL (64,180,68,319, '{0A,4}', 2,0); DS24 (15,190, '{0G, 7}', 59); DS24 (88, 190, '{0H, 3}', 59); DS24 (180, 190, '{0B, 7}', 59); DS24 (260, 190, '{0D, 7}', 59); AN(3,3);ShippingItem will be shipped within 24 -48 hours after full payment is received.Normally the shippment to worldwide is used to take 25 to 30 business days, exclude Sat & Sun.PaymentWe accept PayPal only.Payment must be received in 7 business days of auction closing.Please leave note for your special request (e.g. Colors or Size) in ebay note when you pay the order.Any special request cannot be accepted after 24 hours of payment,because most of orders will be processed instantly and same day dispatched.Contact UsIf you have any questions, please feel free to email our servicer ,and we will reply you ASAP. If no response within 24 Hours, please check the spam of mail box or kindly re-send it to us.We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact. If you haven't received item in 45 days, please contact us and we will arrange refund or resend Feedback Customer satisfaction is very important to us. If you have any problem with your order,please contact us and we will do our best to make you satisfied, please do not leave a negative feedback before we resolve your problem. We guarantee that your issue will be solved quickly.As long as you are happy with your purchase of , please leave us a positive feedback. Your feedback is very important to us it affects our search placement on eBay. We will leave a positive feedback for you in return automatically once we receive your feedback Condition: New, MPN: Does Not Apply, Brand: Unbranded

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