Blog - Page 7 of 11 - Md. Khairul Hasan

February 6, 2020

Dropzone.js – 4 [image preview: onclick image, open in new tab]

We often want to download/preview to make it sure what we have uploaded. A small thumbnail preview sometimes not enough. So, here is a small javascript. That will open the image in new tab. $(…

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Khairul Hasan

February 5, 2020

Dropzone.js – 4 [The preview thumbnail image is not thumbnail size]

The following image says it all : The images in the thumbnail are not in their perfect size. To solve this, we have to add some CSS. A css tag like following in the <head>…

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Khairul Hasan

February 4, 2020

Dropzone.js – 3 [Preview from upload folder]

We always want to see what we have done in the past. An user will want to see the uploaded files later. When we reload our dropzone upload page, We can’t see the files we…

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Khairul Hasan

February 3, 2020

Dropzone.js – 2 [deleting files]

Humans make mistakes, It’s their default behavior. It is possible that while uploading files people will upload unnecessary images and later they will want to delete those. In our previous version of dropzone test project,…

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Khairul Hasan

February 2, 2020

Dropzone.js – 1 [upload files]

Dropzone.js is a JavaScript library which provides drag and drops file upload with preview. It works with or without jQuery within the project and also it doesn’t require any other libraries. It doesn’t upload the…

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Khairul Hasan

February 1, 2020

Tampermonkey script to identify job posts from certain country in upwork – 1

I am a part-time freelancer for a while now. In the meantime I have grown experience that the behavior/need/payment most of the clients from certain countries are not good. Of course there are exceptions, but…

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Khairul Hasan

January 4, 2020

Reading data to PC from a cheap multimeter – 6

The project has been finished but there is some optimizations. I have almost ran out of the IO pins of the stm32 bluepill board. Now i have an idea that to determine the state of…

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Khairul Hasan

December 30, 2019

Cross Compiling Orangepizero OS Image

There are some images from the manufacturer for the low cost little board orangepizero is available but i liked the dietpi OS because it is lightweight and they provided a tasksel like tool to easily…

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Khairul Hasan

December 30, 2019

Arduino Egg Incubator Motor Controller

A guy need a incubator motor controller and asked me to built one for him. The function will be as following. Wait one hour Run the dc gear motor forward for 10 seconds Wait one…

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Khairul Hasan

December 1, 2019

Relay based two step counter

As I am working at an amusement park, our roller coaster ride suddenly had a problem. It never stopped, it is continuously running over and over. It was supposed to run on the loop two…