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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Blog Archives
Tracking Balloons with WSPR
Tagged with: Encoding, HF, High Altitude Balloon, open source, Open-Source Hardware, RF, STM32F0, WSPR
Posted in HAB, Projects
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…
Tagged with: DIY, Growing, HydroBot, Hydroponics, Open-Source Hardware, Plants, STM32, STM32F0
Posted in HydroBot, Projects
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…
Tagged with: DIY, Growing, HydroBot, Hydroponics, Open-Source Hardware, Plants, STM32, STM32F0
Posted in HydroBot, Projects
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,…
Tagged with: DIY, Growing, HydroBot, Hydroponics, Open-Source Hardware, Plants, STM32, STM32F0
Posted in HydroBot, Projects
Posted in HydroBot, 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…
Tagged with: DIY, Growing, HydroBot, Hydroponics, Open-Source Hardware, Plants, STM32, STM32F0
Posted in HydroBot, Projects
Posted in HydroBot, Projects
Therm RTD
Therm RTD is an addition to the Therm PID Controller family, with support for RTD temperature sensors. RTDs (or Resistance Temperature Detectors) use a coil of fine wire made from a material (usually platinum, copper or nickel) that has a very predictable…
FeatherHAB: 2-gram High Altitude Balloon Tracker
FeatherHAB is a lightweight, small, and inexpensive balloon tracker. It tracks the location of a balloon with GPS and broadcasts the balloon’s position to the APRS network on 144.390MHz. The tracker is built around a Ublox MAX8 GPS module and…
Tagged with: Amateur Radio, HAB, HAM Radio, High Altitude Balloon, MAX8, STM32, STM32F0, ublox
Posted in HAB, Projects
Posted in HAB, Projects
Therm: a Tiny PID Controller
Therm is a very small PID controller with an OLED display, thermocouple interface, and USB port. It can switch an external solid-state relay for driving large loads, or a transistor for driving small loads. When attached to a computer, it…