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A New Pinhole Camera!
I just completed constructing a new pinhole camera of my own design and craftmanship. I've integrated an automated shutter system into my pinhole camera. Now, using my Samsung Galaxy phone, I can simply input the desired exposure time in seconds or fractions thereof. This input triggers an Arduino microcontroller to precisely manage the camera's shutter duration. This automation not only eliminates the risk of shaking the camera when manually operating the shutter but also relieves me from mentally counting exposure seconds, especially beneficial for exposures shorter than one second
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To enable communication between my phone and the camera, I developed a custom C++ script. This code facilitates seamless interaction between my phone app and the controller via Bluetooth, overseeing operations of both the micro servo and the LED exposure indicator on the camera. It took a few adjustments with invaluable insights provided by ChatGPT to make it work.
Crafted from walnut, the camera has a distinct dark finish. It uses 120 film which offers larger frames compared to standard 35mm film. Currently, I am in the process of constructing a second iteration of the camera to address minor design and aesthetic concerns. For this upcoming version, I decided to use canarywood. While there might be potential to further miniaturize components for a smaller camera, I am undecided whether I will explore that avenue.
Overview: ESP32 WiFi Repeater
Today in this session, we are going to DIY a portable ESP32 based WiFi repeater. This device will help you to extend your existing WiFi network. In this IoT Generation, we use lots of smart home appliances which require WiFi connectivity to control them remotely. So we can set up a separate WiFi network with different SSID and Passwords for those devices. Alternately, we can also use this device to provide separate internet connectivity to the guests because unlike ESP8266 based WiFi repeater, we can achieve a bandwidth of more than 15mbps i.e 3 times more. That means we can browse the internet and stream videos without interruption.
Without doing delay lets build the cheapest and portable WiFi repeater using ESP32 development board.
Components Required
To build ESP32 based portable WiFi repeater we require the following components. You can buy them from the amazon affiliate links provided below:
Now, before diving into the project let's learn more about ESP32 WiFi repeater.
What is ESP32 Wi-Fi Repeater & How it works?
An ESP32 Wi-Fi repeater or expander can be used to expand the coverage area of your existing Wi-Fi network. It works by receiving your existing Wi-Fi signal, amplifying it, and then transmitting the enhanced signal. With an ESP32 Wi-Fi repeater, you can effectively double the coverage area of your Wi-Fi network – to reach the far corners of your home or office, on different floors, or to expand coverage in your yard.