IT Industry’s responsibility towards a Greener Earth.

[Ramin Assadollahi] uses his Raspberry Pi Zero W as a self-contained mobile desktop, connecting to it over VNC from another computer when he wants to hack away at some code or work on a new project. But he often found himself wishing there was some convenient way of displaying pertinent into right on the device, such as what IP address the Pi Zero had pulled. Then he found the 2.13 inch e-Paper HAT for the Pi Zero from Waveshare, and it all clicked into place.

StickPi – a Raspberry Pi Zero W with GPIO buttons and an e-paper display
https://assadollahi.de/stickpi-a-raspberry-pi-zero-w-with-gpio-buttons-and-an-e-paper-display/

UPDATE: NODE recently released another iteration of the Pi Plug 2 that looks nicer and provides more protection for the Raspberry Pi.

Imagine a Raspberry Pi Zero W. Now add a professionally soldered header. Boom, that’s the Raspberry Pi Zero WH!

The Raspberry Pi Zero W is a great platform for IoT projects, with a smattering of GPIO and onboard WiFi. However, security is an important consideration when it comes to the Internet of Things and it can be beneficial to keep your IoT devices on a separate network for safety’s sake. [Albert] wanted to do this all on board the Pi Zero W, and figured out how to get it acting as an access point and a client all at the same time.

[Albert] starts off with a fresh install of Raspbian Stretch, and sets the Pi up in OTG mode. This allows access to the Pi over a USB serial terminal. This is great for productivity when working on headless networking projects, as it can be frustrating trying to work with an SSH session that keeps dropping out when you change settings.

After creating a second named device (ap0) to go along with the one created automatically by the kernal (wlan0), DNSmasq is installed to act as a DHCP server for the AP.

Enabling Simultaneous AP and Managed Mode WiFi on Raspberry Pi Zero W (Raspbian Stretch)
https://albeec13.github.io/2017/09/26/raspberry-pi-zero-w-simultaneous-ap-and-managed-mode-wifi/

Shield for RS-422 over CAT5 with a Pi Zero host

This Shield connects a Pi Zero host to RS-422. It has two RJ45 for daisy-chain and a bus manager for transceiver control.

This simple project (pcb and enclosure) will help you to put a Pi Zero to a cabinet. The pcb includes a simple switching voltage regulator to convert DC voltages between 9…35V into 5V for the Pi Zero. The breadboard with marked and connected GPIO pins are is useful to add relays or circuit to your project.