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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
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
Low cost, low power battery led indication cirucit
1. I have a battery, a charger & a load as in ckt attached. 2. Have to glow led when charging happens. While charging current decreases while battery getting full. Have...
Thursday, 20 February 2020 - 06:33
Measure contactless dc current 0-100mA
Is there any sensor available to measure dc current from 0-100mA contactless? Contactless is the problem, looked for some sensor half effect but they are for very high currents...
Saturday, 1 February 2020 - 06:34
IAR view flash & ram size?
1. Which setting to enable in IAR to view how mch program and data memory is occupied? My code builds with zero error & zero warning. Earlier it used to Tools->Options->...
Tuesday, 17 December 2019 - 06:32
Autotune PID c code example
1. Looking for some autotune PID C code working ones. Which works directly or some minor modifications.   2. Application is heater.   3.I have tried arduino autotune pid...
Sunday, 15 December 2019 - 13:28
Issue in PID control formula & assigning output to 16 bit timer PWM
1. Writing PID control for temperature control. Took kp,ki,kd values from Delta Electronics PID which calculates from Autotune.   2. Below is code. Is below code ok for PID...
Thursday, 5 December 2019 - 13:13
K Thermocouple conversion by polynomial conversion formula
Was writing code to convert thermocouple k type conversion formula for best accuracy. Goal is to use polynomial functions and not the table or other method, that I will write in...
Thursday, 7 November 2019 - 06:20
Deciding cut off frequency for low/high pass filter
1. I have a application in which need to get 10Hz-240Hz signal. So first made a 240hz LFP & then connected 10Hz HPF after that. Ckt is attached. Res/cap values are taken from...
Thursday, 24 October 2019 - 12:04

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