Blog Archives

Gaggia Classic Seamless PID Upgrade

The ability to make good espresso is one of the most coveted skills in the coffee world. The rich body and complex flavor profile of a well-made shot brings the beans to life with a depth that other brewing methods

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Posted in Espresso Mods, therm

New Product: CANable Pro – Isolated USB to CAN Adapter

The CANable Pro is a low-cost fully isolated USB to CAN adapter. Connect to any CAN2.0A/B network without worrying about common mode offset, ground noise, or damaging your computer! The CANable Pro is open-source hardware that is manufactured in the

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Posted in Announcements, Projects

HydroBot: Deep Water Culture

Deep Water Culture (DWC) is a hydroponic gardening method in which plants are grown directly into a large pool of nutrient solution. Typically, plants are placed in net baskets full of a growing medium such as perilite or expanded clay

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Posted in HydroBot, Projects

HydroBot: Nutrient Film Technique

Continuous Flow or Nutrient Film Technique (NFT) hydroponic systems use a shallow stream (or film) of water recirculating through a channel to deliver nutrients directly to the plant roots. The stream is shallow enough that the uppermost roots laying in

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Posted in HydroBot, Projects

Tracking Balloons with WSPR

What is WSPR? WSPR is a low data rate digital protocol intended for measuring RF propagation, typically on LF and HF bands and at very low powers (often 1W to as little as 20mW). WSPR messages are digital packets that

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Posted in HAB, Projects

HydroBot: Prototyping New Modules

ProtoModule is a HydroBot module designed to easily develop and test new monitoring or control functions that may someday go into a HydroBot module. It has 11 GPIO pins and the power rails broken out on a 0.1” pin header for easy breadboarding or

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Posted in HydroBot, Projects

HydroBot: Connecting the Modules

HydroHub is a HydroBot module designed to connect together HydroBot modules in a star topology. The hub provides power and CAN connectivity to a total of eight channels. It has a DC barrel jack for connecting an external power supply, as

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Posted in HydroBot, Projects

HydroBot: Switches and Relays

RelayDrive is a HydroBot module designed to drive relays and other electro-mechanical devices. It consists of 4 low-side outputs, each rated for 1A continuous current, as well as 4 digital inputs, and is controlled over CAN. This module is intended to drive mechanical relays, solid state relays,

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Posted in HydroBot, Projects

The CANable USB to CAN adapter is now cheaper and back in stock!

The CANable open-hardware USB to CAN adapter is now back in stock! You can order directly from the Protofusion Tindie store. I dropped the price to $25, making the CANable an even more affordable way to interface with the CANbus.

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Posted in Announcements, Projects

HydroBot: Measuring Atmospheric Conditions

AirSense is a HydroBot module designed to measure air temperature, relative humidity, and barometric pressure. It uses the Bosch BME280 atmospheric sensor to take measurements and sends the results out over CAN. The module can measure temperatures from 0 to +65°C

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Posted in HydroBot, Projects