Extra Goodies Supplied
Inside of the extra/ folder of the library contains the following goodies. Note that almost all of the components we reference tend to be commonly available on a variety of consumer electronic goods and hobbyist/DIY websites.
This simple breakout hooks up a bi-directional logic level converter (BDLLC) to a serial-based ESP8266 WiFi module (aka ESP-01). It allows a 5v Arduino based board to talk to a 3.3v WiFi module, all contained in its own little breakout. This helps reduce the amount of clutter in DIY building these controllers. Note that these breakouts do not have an on-board 3.3v regulator and cannot be programmed while seated in the breakout (there are very inexpensive programmers for such, however). Also note that the 3.3v power coming off many Arduinos is not powerful enough to drive the ESP8266 WiFi module, and will likely require a proper 3.3v power source.
Provided are the Gerber files for older type-1 BDLCCs and Gerber files for newer type-2 BDLCCs, which can be submitted to circuit fabrication websites such as PCBWay, JLCPCB, etc. and have your own circuit board produced for you. You can also fork and edit the type-1 circuit maker project or fork and edit the type-2 circuit maker project.
This more advanced breakout hooks up a BDLLC to both a 32KB SPI SRAM chip and a serial-based ESP8266 WiFi module (aka ESP-01). This allows constrained 5v Arduinos (like the ATMega2560) to actually have the memory and WiFi needed to bring it more up to par with other MCUs that work well for Hydruino. It will require two 10k 1/4W resistors, a 23K256 SRAM chip (available from Mouser, DigiKey, etc.), a 3v3 regulator (either MOSFET or 3.3v step-down module), a BDLLC (newer type-2 only /w Vcc/GND in middle), a jumper to put it in write-enable (WE) or write-protect (WP) mode, and a standard push button reset switch. This breakout supports programming the ESP WiFi module as well as providing on-board 3.3v source. You will also need to enable external SRAM support (aka virtual memory) in the header defines of the controller.
Provided are the Gerber files, which can be submitted to circuit fabrication websites such as PCBWay, JLCPCB, etc. and have your own circuit board produced for you. You can also fork and edit the circuit maker project.
This is a simple 3D printed enclosure that we built to store a variety of sensor electronics inside of - its own little project case if you will. It has enough space for up to 8 relays (stacked 2x4), power supply, arduino board, 4 AC outlets, 4 peristaltic pumps, an upper deck for sensor hardware, front 20x4 LCD display, 2x2 button matrix, DHT sensor and beeper slots, and a variety of other little things. It can be oriented a variety of different ways to suit your needs, or modified to your heart's content.
The FreeCAD source is provided as well as the .STL files - download link. If you enjoy it, show it some love on Thingiverse.
Another simple 3D printed basket that we built to store a variety of nutrient solutions in, such as two 8 oz. pH Up/Down bottles, or a single 1 liter liquid plant food bottle. It's internal storage room is 140mm x 60mm x 140mm. The mounting holes are 100mm apart and meant to be used with standard M4 bolts.
The FreeCAD source is provided as well as the .STL files - download link. If you enjoy it, show it some love on Thingiverse.