Matthias Ringwald (@mringwal) 's Twitter Profile
Matthias Ringwald

@mringwal

Bluetooth for All!

ID: 63061469

linkhttp://bluekitchen-gmbh.com calendar_today05-08-2009 07:15:14

338 Tweet

2,2K Followers

98 Following

Matthias Ringwald (@mringwal) 's Twitter Profile Photo

A friend pointed out a stupid bug in the POSIX version of our Broadcom chipset driver and also helped to figure out how to use the 'mailbox' firmware interface to properly power cycle Bluetooth. Et voilà...

plan44.ch (@plan44ch) 's Twitter Profile Photo

70 devices based on our P44-DSB-xx2 experience now power the ETH Digital Platform, shown to the public for the first time this weekend: (Image © Jon Etter) plan44.ch/media/ETH_DP_s… plan44.ch/custom

Matthias Ringwald (@mringwal) 's Twitter Profile Photo

New project with Dirk: the open-source BLE Sniffer called Raccoon for Nordic's nRF5x line. Captures unencrypted connections incl. LE Data Length Extensions. Use 3 sniffers to track all advertisement channels. Encryption, 2M and Codec PHY will come soon! github.com/bluekitchen/ra…

BlueKitchen GmbH (@bluekitchengmbh) 's Twitter Profile Photo

New blog post explores how to correctly receive Bluetooth HCI packets on UART data without RTS/CTS: bluekitchen-gmbh.com/msp432p401r-cc…

Matthias Ringwald (@mringwal) 's Twitter Profile Photo

Finally got around to play with circular/ping pong DMA and manual CTS/RTS to continuously receive data without loosing bytes.

Matthias Ringwald (@mringwal) 's Twitter Profile Photo

The BL654 USB dongle from Laird Technologies is back-ordered until Summer 2022 - use an nRF52840 USB dongle with Bluetooth PTS instead

Matthias Ringwald (@mringwal) 's Twitter Profile Photo

Need to access a device or sensor with a common bus interface like I2C, I2S SPI, SDIO and friends from your desktop system, please checkout our new github.com/mringwal/multi… project.

Matthias Ringwald (@mringwal) 's Twitter Profile Photo

Anybody managed to access iOS GATT Services over an existing BR/EDR Connection? Want to read the battery, but only get 'connection refused: no resources available' when connecting to ATT PSM 0x1f. #CoreBluetooth

Matthias Ringwald (@mringwal) 's Twitter Profile Photo

Finally managed to record a video and write about AVRCP Cover Art from iPad on pimoroni Cosmic Unicorn based on on vaporweave 's spectrum analyzer demo: bluekitchen-gmbh.com/avrcp-cover-ar…

Matthias Ringwald (@mringwal) 's Twitter Profile Photo

Finally able to control our living room projector remotely via Matter by having an ESP32-C3 press the Power button and monitor the LEDs :) github.com/mringwal/proje…

Finally able to control our living room projector remotely via Matter by having an ESP32-C3 press the Power button and monitor the LEDs :) 
github.com/mringwal/proje…
Matthias Ringwald (@mringwal) 's Twitter Profile Photo

The new Bluetooth PTS Test Dongles bluetoothstore.myshopify.com support 2 BLE Peripheral Roles - while a bit expensive for a USB Bluetooth dongle, it's the first I've seen that supports more than one BLE Role. LE Data Length Extension would have been nice as well...