newrudeman

NRF52840 Dongle

Overview

Lead out the configuration resistor to facilitate serial number modification

There is also a burning pin for easy burning.

Modified using nRF52840 official design drawings

If necessary, you can replace the TypeC interface with A port~

About firmware

Attached here is the firmware of IndexHMD,

When using the Index firmware, you need to modify the configuration resistor to P0.24/P1.3/P1.4 (the Index firmware can short any one of the three) (the default onboard ones are P0.02, P0.04 and P0. 06).

If not short-circuited, it will be recognized as "Valve VR Radio & HMD Mic" instead of "Valve VR Radio". The former will include a microphone input.

About packages and components

CAPC1005X04L is C0402

32.768kHz does not need to be installed

120R/0.85A is a magnetic bead. In fact, it can be short-circuited directly (

The antenna can be replaced by another one, but you need to pay attention to modify the grounding (the antenna used now is a monopole, and the other side does not need to be grounded)

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2024-11-22 12:11:20

C6000 DSP Work Summary
Before I came into contact with DSP , I had always been developing single-chip microcomputers. In the previous single-chip microcomputer development, all programs were in one file, there was no distin
Review summary: National Technology dual-core N32WB452 with CAN Bluetooth is here
Event details: [National Technology dual-core, with CAN Bluetooth N32WB452 is here]Updated to 2022-08-29Evaluation report summary:@yang8555u[National Technology N32WB452 Review] Issue 4: Using GPIO to
Moving bricks after work
I would like to ask all the hardware engineers, how are they charged for part-time work outside of work?1. Based on the design principle, PCB production, sample welding and debugging, what is the reas
Caution! Don’t be fooled by long-term drift and hysteresis of voltage references
[i=s]This post was last edited by qwqwqw2088 on 2019-2-20 09:39[/i] [size=4] The LT1461 and LT1790 micropower low dropout bandgap voltage references excel not only in temperature coefficient (TC) and
Typical circuit of LM258 op amp
I don't understand the schematic diagram, can you explain it to me?
[Lianshengde W801-KIT Experience] Unofficial debugger debugging experience
[i=s]This post was last edited by tinnu on 2022-1-3 12:41[/i]Lianshengde W801 is an upgraded version of Lianshengde W806 which was very popular some time ago . Lianshengde W806 program can be directly

Datasheet More

Circuits More