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 ## Get Familiar with the Task In the first step, you have to figure out what the main task in this challenge is. As you may see, there is a text input form that updates the **textContent** depending on a strange-looking **if** statement. If you can manage to make this...

# What is Modular Arithmetic? Usually, when you want to perform division, you do something like: $$ \frac{3}{5} = 1,(6) \Rightarrow 1\frac{2}{3} $$ But there are some cases when you only need the remainder. $$ \frac{\text{Dividend}}{\text{Divisor}} = \text{Quotient} + \text{Remainder}...

### First Part **Figure out what the real task of the challenge is.** ### The Hardware Part Based on the given schematic, we have an RPI2040 controller connected to another mysterious chip via the I2C bus. After a quick search on Google to find out what the M24C02-WMN is, I discovered it’s...