Chinese Western Buffet and Laundry
Hui Gardens HF6 2W USB powered amplified speaker was designed to provide better sound than what comes out of a laptop computer. It is small and fits into a backpack side pocket without issue. The HF6 is powered by a LM386 and features bass boost along with gain and volume adjust. There is even room in the Pelican 1010 case lid to store an aux cable and USB power cable. Hui Gardens HF6 can be powered by any 5VDC source including the USB port on a laptop computer or wall charger.
Hui Gardens HF5 timing standard was made to be fairly universal and can act as a transducer that triggers based on the input contacts being closed. The HF5 outputs 5VDC when the trigger input is closed or if the push button is pressed. HF5 is powered by an Arduino Nano and the Arduino micros() library function claims resolution down to 4us. Protected by a Nanuk 903, the HF5 can withstand transport.
Thanks to the 5VDC output, the Hui Gardens HF5 can be used to trigger a frequency counter. Aside from the 5VDC output, the HF5 also has NO (normally open) and NC (normally closed) banana jacks triggered by the same inputs. The HF5 is powered by a 4x AA external battery pack and features a backlit 16×2 LCD display which displays current relay position and timing.
Hui Gardens HF3 WiFi RTD meat smoker temperature transmitter prototype was created to allow my wife and I to monitor the temperature of her smoking creation without going out into the cold and having to manually look at the temperature display. It also allows remote monitoring should we need to run out on a quick errand.
The Hui Gardens HF3 is housed inside a Pelican 1010 case to protect it from the elements since this is meant to be outside where her Traeger smoker is. I found that the temperature probes supplied with her Traeger smoker is a PT1000 2 wire RTD with a 3.5mm aux plug on the end. That’s easy enough, I can work with that. The brains of the HF3 is an Arduino UNO Rev 3 with a WiFi shield and RTD amplifier. Powered by 4x AA batteries that fits inside the housing, I’ve run the Hui Gardens HF3 in the cold for over 12 hours. The HF3 sends the temperature data over WiFi to https://huigardens.com/hf3 allowing for remote monitoring.
To allow for easy hanging of the HF3 WiFi temperature transmitter using the supplied carabiner of the Pelican 1010 case, the temperature probe input is located at the bottom to help in inclement weather since it’s facing down.
Check out this sample temperature log of a smoked turkey the missus made.