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No code for android app , only drag and drop method I have to make very simple app like press button "Read", and read data coming on Bluetooth, press button "write" , send data on android bluetooth. I was looking for drag and... |
Sunday, 2 August 2020 - 15:09 |
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Curve fit for sensor equation 1. Have a thermistor, data whose dataset is available not anything else from company except B value. Attached is data. 2. Trying to make a equation for it and implement for... |
Wednesday, 8 July 2020 - 06:14 |
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ADC reading falling overtime when measured 1. I am interfacing sensor thermopile and thermistor , whose data-sheet is attached. 2. Here is schematic of 24 bit adc which is used to measure thermopile mV and... |
Saturday, 4 July 2020 - 07:40 |
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DS1307 Read error I2C by bit banging. 1. I have written below code, have to just read the times from RTC. So I read all registers starting from 0x00.I always zero from RTC DS1307. 2. Time is set by Arduino... |
Thursday, 2 July 2020 - 07:56 |
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Measuring incorrect voltage by multi meter. What could be reason 1. I was measuring voltage of thermopile with Fluke multimeter 15B+. Attached is my circuit. Its party incomplete shown but in actual its complete in hardware. 2.... |
Wednesday, 17 June 2020 - 15:09 |
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Intergral Windup method in PID control 1. Trying to write PID control for temperature maintain in oven. We are doing it Pb,Ti & Td. 2. Now I see sometimes I am able to maintain temperature to setpoints.... |
Tuesday, 16 June 2020 - 15:21 |
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Current limit by LM358 in buck-boost circuit 1. I have a buck-boost IC, where input is 12V or higher and output I need is 12.6V to charge a lithium -ion battery 3 cells series 2. Need to limit charge current of... |
Monday, 15 June 2020 - 07:16 |
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I2C bit banding and interfacing analog ADC 1. I need to interface NAu7802 datasheet attached. 2. MCU is operating at 16Mhz, writing I2C code by bit banding. 3. took reference from Microchip AN1488 note for bit banding and... |
Saturday, 13 June 2020 - 07:32 |
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Interfacing SIM900A HTTP URL command sequence 1. I am interfacing SIM900A with MCU. Need to hit a http url (URL has data embedded into it, so I made it my code). This is to be repeated every 5 mins. 2. Here is... |
Saturday, 6 June 2020 - 13:54 |
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Identify Autotune PID algorithm 1. I have checked autotune PID for Delta Temperature PID controller for maintaining temperature of oven. 2. We set autotune temperature to 75C & current oven... |
Wednesday, 29 April 2020 - 10:03 |
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Understand operation of buck-boost XL_6019 1. Need to design a buck-boost. Inout 10V-30V, output 12.36V/1.55A. Saw this circuit from XLSEMI pic attached using XL6019. 2. It has weird implentation of L1,CDC,L2... |
Tuesday, 14 April 2020 - 05:31 |
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Understanding DC-AC inverter for pure Sine PWM 1. Need to design solar inverter dc to ac using pure sine wave PWM. I am reading a bit and this is what understand. I am using MCU with FPU enabled. 2. Have to change output freq... |
Wednesday, 11 March 2020 - 14:12 |