Updates to the NanoBLESensors Project
I’ve merged in some significant updates to the NanoBLESensors project. Hop over to GitHub to check them out.
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DHT11 Temperature and Humidity Sensor and the Arduino Nano 33 BLE
I’ve created a new simple Arduino sketch using a variety of Temperature/Humidity sensors. https://github.com/tjpetz/EnvironmentSensorTests. Of note in this simple example is using the DHT11 sensor with a Nano 33 BLE Sense board.
Recover Synology rsync backup jobs
I recently upgraded a very old Netgear ReadyNAS device to a new Synology DS-420+ at a remote location.  The main use of the old ReadyNAS was an a rsync target for backing up my main Synology rack station.  I have about 2.5TB of rsync’d files.  I wanted to reuse the existing rsync files to … Continue reading Recover Synology rsync backup jobs
SWD Breakout and Breadboard for Nano 33 BLE Sense
The Arduino Nano 33 BLE (Sense) and the Nano 33 IoT expose SWD pads on the bottom of the board. Â These pads expose the SWD interface that enable debugging when used with an SWD compatible debugger such as the Segger J-Link Mini EDU (https://www.segger.com/products/debug-probes/j-link/models/j-link-edu-mini/). The pads on the bottom of the Nanos are very small … Continue reading SWD Breakout and Breadboard for Nano 33 BLE Sense
Resolution on Bind9 on NFS
After a good bit of investigation and thinking… the problem with bind9 has nothing to do with bind9. The problem was a mismatch between UIDs between the Synology NAS server and the bind account on the pi. As I was using sec=sys for authentication all the authentication is based on UIDs. On the pi bind … Continue reading Resolution on Bind9 on NFS
Trouble with Bind9 on a Pi with NFS root
I got a new Raspberry Pi 4 as I’m looking to consolidate some of my old Pi’s and clean up my servers. To avoid issues with wearing out the SD cards I mount the root file system off an NFS NAS storage server. Unfortunately I’ve hit a problem with installing Bind9 using the defaults when … Continue reading Trouble with Bind9 on a Pi with NFS root
BLE and WiFi on Nano 33 IoT
I’ve put together a simple demo project of using both the BLE and WiFi radios on an Arduino Nano 33 IoT. Note, as there is only 1 radio you cannot use BLE and WiFi simultaneously. You can use one at a time, the order of how you make the various calls is important. Check it … Continue reading BLE and WiFi on Nano 33 IoT
New Arduino Project
I’m working on tracking down and resolving a humidity problem in our home. While I have some basic measurements of humidity through our Nest Thermostat and a Canary device I want broader coverage so I can measure localized problem areas. The relatively new Arduino 33 BLE Sense looks to be a great device to meet … Continue reading New Arduino Project
Upgraded NetworkBrowser to Xcode 10
I upgraded NetworkBrowser to Xcode 10. Â The biggest change is in starting to internationalize the application. Â With Xcode 10 there is a big focus on internationalization (this is a very good thing). Â But with this focus comes some warnings for layout builder. Â I found that I could resolve most of the issues after viewing this … Continue reading Upgraded NetworkBrowser to Xcode 10
Configure Asus AC-68U Router VPN
The Asus AC-68U (like many routers) supports VPN functionality with the OpenVPN SSL based VPN software.  Out of the box the VPN is very simple to configure.  However, as delivered it uses quite a weak self signed certificate by Asus.  Additionally because of the way the default certs are configured it really only securely supports a … Continue reading Configure Asus AC-68U Router VPN