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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
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
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
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
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
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
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
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
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
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
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
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

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