How to send data from NRF 52832 to HC 08 device?

RE: How to send data from NRF 52832 to HC 08 device?

colossal_chameleon — Mon, 19 Nov 2018 23:59:12 GMT

I thought that might be the case. Thank you for your help!

RE: How to send data from NRF 52832 to HC 08 device?

awneil — Mon, 19 Nov 2018 23:10:58 GMT

That's the Nordic UART Service (NUS).

As the name suggests, it's a Nordic Proprietary service - so you'd have to implement it yourself at the HC-08 end...

EDIT

Alternatively, implement whatever proprietary service(s) the HC-08 has on the nRF end.

The point here being that there is no standard "UART-over-BLE" service defined by the Bluetooth SIG - so everyone does their own proprietary thing.

RE: How to send data from NRF 52832 to HC 08 device?

colossal_chameleon — Mon, 19 Nov 2018 23:00:17 GMT

Did you end up figuring this out? I'm trying to do the same thing. I was able to establish a connection between the devices, using "examples/ble_central/ble_app_uart_c/", but haven't figured out how to send data from nrf52832 to HC-08.

RE: How to send data from NRF 52832 to HC 08 device?

FormerMember — Fri, 30 Jun 2017 09:39:53 GMT

If you want to communicate with the that chip/module over uart, I would recommend you to take a look at our UART example in the SDK, in the peripheral folder.

RE: How to send data from NRF 52832 to HC 08 device?

IC — Wed, 28 Jun 2017 03:10:04 GMT

Specification of HC-08 Bluetooth Module

Bluetooth protocol: Bluetooth Specification V4.0 BLE
Open environment and iphone 4 s can achieve 80 meters extreme distance communication.
Based on TI CC2540 chipset
Bluetooth class 2
Industrial level SPP Bluetooth module
Integrated chip antenna
Industrial temperature range from -40 to +85
Support for on-board applications
Operating frequency: 2.4 GHz  ISM band
Modulation method: GFSK (Gaussian Frequency Shift Keying)
Acuity: -84 DBM or less BER at 0.1%
Transfer rate: Asynchronous: 6 KBPS Synchronous: KBPS
Security features: Authentication and encryption
Support services: Central and Peripheral UUID FFE0, FFE1
Power consumption: automatic sleep mode, the standby current 400 ~ 1.5 mA, transfer 8.5 mA.
Power supply: + 3.3 VDC 50 MA

I want to send data through UART

RE: How to send data from NRF 52832 to HC 08 device?

Bert — Tue, 27 Jun 2017 16:55:07 GMT

Hi @IC, There's a couple different ways you can do this. Can you post the specs of your HC08 chip? I would assume it has some form of serial interface to work with, unless of course you mean over BLE. In either case, a datasheet would help answer your question.