⌁buslabBLE / I²C / UART
Direct device connection v1.0
YOUR WIRELESS WORKBENCH

BLE I²C + UART Console.

Send bytes. Read registers. See every bit.

ᛒ
nRF52840 Nordic UART
Connect to your BLE-I2C bridge to get started.
Disconnected

Discover I²C devices

Scan addresses 0x08–0x77, then select a responding address.

Uses one-byte reads. Probing may consume data or change state on some devices. Scan only when appropriate for your target.

01

Transaction

I²C MASTER
0x
7-bit · 08–77 · unshifted
0–2047 bytes · decimal count
Hex bytes separated by spaces, or a continuous hex string.
OPERATIONWRITE → REPEATED START → READ
⌘ / Ctrl + Enter to send
Packet & connection details ＋

One request at a time. Reads follow writes with a repeated START. Leave write data empty for a read-only transaction, or set read count to 0 for write-only.

Reads up to 2047 bytes use one continuous I²C transaction. Larger responses arrive in 20-byte Bluetooth packets and are checked and reassembled before display. Updated firmware is required above 18 bytes.

NUS service
6e400001-b5a3-f393-e0a9-e50e24dcca9e

Open this page directly in Chrome or Edge. Disconnect the phone’s nRF Connect session first. All transactions stay in this browser tab; nothing is sent to a server.

02

Response

Awaiting transaction
[ · · ]

Bytes will land here

Connect and send a transaction.
Click any returned byte to inspect its bits.

03

Bit inspector

MSB → LSB
Select a response byte

A closer look, one bit at a time.

I²C script & binary file

JAVASCRIPT
No file selected. Scripts receive file as a Uint8Array.

Use await i2c.write(address, bytes), i2c.read(address, count), or i2c.writeRead(address, bytes, count). Up to 32768 write bytes and 2047 read bytes per transaction. Buffer a file with await i2c.stage(file); transmit it locally with await i2c.writeStaged(address). Helpers: file, fileName, sleep(ms), log(...), progress(sent, total), ascii(text), text(bytes), hex(bytes). Run only scripts you trust.

Ready. Select a Low Region Binary for the TPS25751 example.





↳
Activity
0
Your session’s transactions will appear here.