Tag: Buzzer

BLE Buzzer goes fishing

BLE Buzzer for Salmon evaluationI built a special version of the BLE Buzzer on request of a Norwegian customer. The buzzer is waterproof according to IP67. This was required to enable the buzzer to survive classification of salmons on board a research vessle.

It was a challenge to fit all components into the original waterproof buzzer case. I also had to fit a watertight USB charging socket, a status LED and a power switch into the housing to be able to operate the buzzer without opening the sealed housing.

The first batch successfully passed an intense testphase in a rough seawater environment.

The Buzzer Module is available in a new Version!

Buzzer Modul
Buzzer Module

I updated the hardware base for my buzzer module. Using a dedicated PCB, the board now has a USB-C connector for charging, a status-LED and a push-button for switching the module on and off. The processor module supports Bluetooth BLE as well as WIFI. This allowed me to add configuration through a browser.

The module is significantly smaller than the predecessor. Therefore, it is more flexible in its appplication. It is ideal for integration in DIY buzzer projects. there are nearly no limits to phantasy when creating fancy buzzers.

Increased Costs

Banknoten
 

Costs for parts originating in the Far East increased dramatically. The increase is caused by a general shortage of electronic parts and recently raised shipping costs. In addition, the tax exclusion for  goods below 20 € was dropped. Custom fees have to be paid now for all goods.

My cost calculations contain a very shallow uplift, so I have to raise prices to cover for the increase in external costs.

The Buzzer at Court again!

Bluetooth LE Buzzer
Bluetooth LE Buzzer

Once more, the German Ministry of Justice celebrated a further milestone in digitizing their juridical workflows. The Minister of Justice, Herbert Mertin himself launched the new system in Bad Kreuznach by pushing a Bluetooth Buzzer.

More information on the event (in German only) is available on the website of the Ministery of Justice in Rheinland-Pfalz, Germany.

Long live the RF-603 buzzer!

I designed a new version of the RF-603 based buzzer. The housing now looks exactly like the one of the Bluetooth BLE based buzzer. The flat design is more stable and looks pretty good. It contains an RF-603 transceiver that is powered by two AAA batteries. Both channel selector and main switch are accessible through the housing bottom.

More about the buzzer.

My buzzer is bigger than your buzzer!

Bluetooth LE Buzzer
Bluetooth LE Buzzer

Oh yes, Mr. President. My buzzer is bigger than yours. Its working, and it makes people happy. It trigggers a camera instead of nuclear weapons. It brings fun and happiness without killing somebody.

It is horrible to watch a few madmen to spread fear and violence while starting wars. We can’t fence our nice little world good enough. One day war will be on our doorstep. The same war we already allowed for too long to exist. I therfore say a loud and clear NO to war and violence in any form. No matter if it is lead in the name of a god or for any kind of good cause. This madness has to stop now or our world will burst out in flames you won’t be able to control anymore.

This had to be said here and now.

#NoToWar