# Core Electronics **URL:** https://forum.core-electronics.com.au/c/general/core-electronics-australia/36.md [Latest](https://forum.core-electronics.com.au/latest.md) · [Categories](https://forum.core-electronics.com.au/categories.md) --- ## [About the Core Electronics category](https://forum.core-electronics.com.au/t/about-the-core-electronics-category/317)
**Author:** [@Graham](https://forum.core-electronics.com.au/u/Graham)\ **Replies:** 0
We’re here to help with your projects and educational electronics needs. We’re powered by makers, for makers. Read all about us here. --- ## [Dongar adaptor to fit ford ranger](https://forum.core-electronics.com.au/t/dongar-adaptor-to-fit-ford-ranger/24472)
**Author:** [@Darren333275](https://forum.core-electronics.com.au/u/Darren333275)\ **Replies:** 7\ **Last updated:** [8 October 2026 03:22 UTC](https://forum.core-electronics.com.au/t/dongar-adaptor-to-fit-ford-ranger/24472 "2026-10-08T03:22:14Z")
Hey guys is there any way to make a short adaptor harness from my 2015 px2 xlt ford ranger hi-rider auto dimming rear view mirror so i can keep the original factory harness plug ,but can also plug a newer plug in that su… --- ## [I2C connector standards confusion](https://forum.core-electronics.com.au/t/i2c-connector-standards-confusion/24419)
**Author:** [@Donald23173](https://forum.core-electronics.com.au/u/Donald23173)\ **Replies:** 7\ **Last updated:** [19 September 2026 04:39 UTC](https://forum.core-electronics.com.au/t/i2c-connector-standards-confusion/24419 "2026-09-19T04:39:54Z")
Coming from a software background I prefer a digital interface - particularly I2C. Pulling my hair again over the i2c connectors ! Developing on a breadboard is one thing, but trying to tidy up wiring and use shortest c… --- ## [How can I use an on-grid solar inverter in an off-grid setup?](https://forum.core-electronics.com.au/t/how-can-i-use-an-on-grid-solar-inverter-in-an-off-grid-setup/22253)
**Author:** [@MrNams](https://forum.core-electronics.com.au/u/MrNams)\ **Replies:** 12\ **Last updated:** [14 September 2026 05:23 UTC](https://forum.core-electronics.com.au/t/how-can-i-use-an-on-grid-solar-inverter-in-an-off-grid-setup/22253 "2026-09-14T05:23:04Z")
I have a solar system with an on-grid (grid-tie) inverter, which only works when there is an active grid supply. Unfortunately, I live in an area where there’s no grid power for most of the day, so my solar setup goes… --- ## [mmWave C4001 24GHz Human Presence Detection Sensor (SEN0609)](https://forum.core-electronics.com.au/t/mmwave-c4001-24ghz-human-presence-detection-sensor-sen0609/24351)
**Author:** [@Chanchal326580](https://forum.core-electronics.com.au/u/Chanchal326580)\ **Replies:** 1\ **Last updated:** [3 August 2026 11:15 UTC](https://forum.core-electronics.com.au/t/mmwave-c4001-24ghz-human-presence-detection-sensor-sen0609/24351 "2026-08-03T11:15:30Z")
I’m exhibiting at the World Trails Conference in October, where I’ll have a 1×2‑metre booth located in the main common area — the space where attendees gather for coffee, drinks, and general networking. My campaign focu… --- ## [PiicoDev Expansion Board for Pico (CE07693)](https://forum.core-electronics.com.au/t/piicodev-expansion-board-for-pico-ce07693/9787)
**Author:** [@Core](https://forum.core-electronics.com.au/u/Core)\ **Replies:** 25\ **Last updated:** [22 May 2026 04:40 UTC](https://forum.core-electronics.com.au/t/piicodev-expansion-board-for-pico-ce07693/9787 "2026-05-22T04:40:05Z")
This is a placeholder topic for “PiicoDev Expansion Board for Pico” comments. The PiicoDev® Expansion Board for Raspberry Pi Pico is a great way to start experimenting with Raspberry Pi Pico/RP2040. Use the on-board … --- ## [Help to build a DIY Dimension, Weigh & Scan (DWS) station that can capture product dimensions (L×W×H)](https://forum.core-electronics.com.au/t/help-to-build-a-diy-dimension-weigh-scan-dws-station-that-can-capture-product-dimensions-lxwxh/24197)
**Author:** [@Sahan303973](https://forum.core-electronics.com.au/u/Sahan303973)\ **Replies:** 6\ **Last updated:** [18 May 2026 23:20 UTC](https://forum.core-electronics.com.au/t/help-to-build-a-diy-dimension-weigh-scan-dws-station-that-can-capture-product-dimensions-lxwxh/24197 "2026-05-18T23:20:51Z")
Hi All, We are based in NSW and would like to build a DIY Dimension, Weigh & Scan (DWS) station that can capture product dimensions (L×W×H), weight and the barcode. The requirement is if we place a product in the stati… --- ## [Unified PiicoDev Library install on a Pi 5](https://forum.core-electronics.com.au/t/unified-piicodev-library-install-on-a-pi-5/24073)
**Author:** [@Mark285907](https://forum.core-electronics.com.au/u/Mark285907)\ **Replies:** 6\ **Last updated:** [26 March 2026 01:04 UTC](https://forum.core-electronics.com.au/t/unified-piicodev-library-install-on-a-pi-5/24073 "2026-03-26T01:04:22Z")
Hi Core. Does the Core Electronics Unified PiicoDev Library install on a Pi 5? Maybe a Thonny issue? I ask because when I do this: I get this: I do have my venv selected. image762×482 60 KB --- ## [Polymer Lithium Ion Battery (LiPo) 3.7V 2000mAh (CE04378)](https://forum.core-electronics.com.au/t/polymer-lithium-ion-battery-lipo-3-7v-2000mah-ce04378/5335)
**Author:** [@Core](https://forum.core-electronics.com.au/u/Core)\ **Replies:** 7\ **Last updated:** [16 March 2026 03:24 UTC](https://forum.core-electronics.com.au/t/polymer-lithium-ion-battery-lipo-3-7v-2000mah-ce04378/5335 "2026-03-16T03:24:36Z")
This is a placeholder topic for “Polymer Lithium Ion Battery (LiPo) 3.7V 2000mAh” comments. Welcome to the awesomeness that is LiPo batteries. Polymer Lithium Ion batteries offer superior energy density with this 2000… --- ## [Support request for RCWL-0516 Output Pin not triggering](https://forum.core-electronics.com.au/t/support-request-for-rcwl-0516-output-pin-not-triggering/23878)
**Author:** [@Barry175478](https://forum.core-electronics.com.au/u/Barry175478)\ **Replies:** 5\ **Last updated:** [27 January 2026 06:56 UTC](https://forum.core-electronics.com.au/t/support-request-for-rcwl-0516-output-pin-not-triggering/23878 "2026-01-27T06:56:07Z")
I am running the RCWL-0516 from a bench power supply set at 5Vdc. Connection to the PCB is as follows: Vin → +5V power supply Gnd → 0V power supply Out → anode of and LED The cathode of the LED is connected to groun… --- ## [Tower Mount Enclosure 4x Raspberry Pi (CE04439)](https://forum.core-electronics.com.au/t/tower-mount-enclosure-4x-raspberry-pi-ce04439/9147)
**Author:** [@Core](https://forum.core-electronics.com.au/u/Core)\ **Replies:** 9\ **Last updated:** [27 January 2026 01:40 UTC](https://forum.core-electronics.com.au/t/tower-mount-enclosure-4x-raspberry-pi-ce04439/9147 "2026-01-27T01:40:17Z")
This is a placeholder topic for “Tower Mount Enclosure 4x Raspberry Pi” comments. Now you can mount and display your own Raspberry Pi stack for use as a server / cluster / processing farm. Read more --- ## [Sending a IFTTT request to a Pico w to execute servo command](https://forum.core-electronics.com.au/t/sending-a-ifttt-request-to-a-pico-w-to-execute-servo-command/23606)
**Author:** [@Brady307325](https://forum.core-electronics.com.au/u/Brady307325)\ **Replies:** 3\ **Last updated:** [17 December 2025 02:16 UTC](https://forum.core-electronics.com.au/t/sending-a-ifttt-request-to-a-pico-w-to-execute-servo-command/23606 "2025-12-17T02:16:40Z")
I’ve reviewed the videos and directions on projects with servos, but let me first describe what I am working with and what I’m trying to do: 1 Kitronik Simply Servos Board for Raspberri pi pico 4 Kitronic Servo kits 4 … --- ## [8 Channel Solid State Relay Module (CE05343)](https://forum.core-electronics.com.au/t/8-channel-solid-state-relay-module-ce05343/7090)
**Author:** [@Core](https://forum.core-electronics.com.au/u/Core)\ **Replies:** 19\ **Last updated:** [6 October 2025 05:11 UTC](https://forum.core-electronics.com.au/t/8-channel-solid-state-relay-module-ce05343/7090 "2025-10-06T05:11:51Z")
This is a placeholder topic for “8 Channel Solid State Relay Module” comments. This breakout module gives you access to a 8 channel solid state relay that can be switched with 3-5VDC Read more --- ## [Using Walter board to send data to AWS Cloud](https://forum.core-electronics.com.au/t/using-walter-board-to-send-data-to-aws-cloud/23181)
**Author:** [@Gary2989](https://forum.core-electronics.com.au/u/Gary2989)\ **Replies:** 2\ **Last updated:** [6 September 2025 19:12 UTC](https://forum.core-electronics.com.au/t/using-walter-board-to-send-data-to-aws-cloud/23181 "2025-09-06T19:12:57Z")
Hello I would like to send small amounts of data to the AWS Cloud (or other Cloud services), using the Walter board - typically 100 bytes every 15 minutes. Can anyone advise how to go about this, e.g. provide a referen… --- ## [GPS Speedometer hardware](https://forum.core-electronics.com.au/t/gps-speedometer-hardware/23209)
**Author:** [@Stuart270792](https://forum.core-electronics.com.au/u/Stuart270792)\ **Replies:** 5\ **Last updated:** [5 September 2025 02:37 UTC](https://forum.core-electronics.com.au/t/gps-speedometer-hardware/23209 "2025-09-05T02:37:17Z")
G’day all. I very basic learning raspberry pi guy here. I have hooked up a raspberry pi 4b with multiple display screens into my car and am now looking at more options to play with. I would like to have a GPS speedo, wit… --- ## [Silo level sensor](https://forum.core-electronics.com.au/t/silo-level-sensor/23039)
**Author:** [@Bo282250](https://forum.core-electronics.com.au/u/Bo282250)\ **Replies:** 27\ **Last updated:** [19 August 2025 02:02 UTC](https://forum.core-electronics.com.au/t/silo-level-sensor/23039 "2025-08-19T02:02:23Z")
Hi All, I’m wondering if this is the right place to ask. Can anyone help me build a level sensor for a grain silo? I would like to use the waterproof ultrasonic sensor (A01NYUB) and an ESP32 or something similar, ideally… --- ## [Analyzing grid power](https://forum.core-electronics.com.au/t/analyzing-grid-power/22811)
**Author:** [@Curt293094](https://forum.core-electronics.com.au/u/Curt293094)\ **Replies:** 5\ **Last updated:** [14 July 2025 00:02 UTC](https://forum.core-electronics.com.au/t/analyzing-grid-power/22811 "2025-07-14T00:02:52Z")
Anyone aware of a circuit to drop 120VAC (or 240VAC) down to a voltage level that could be input to an ADC pin for analysis? Thanks, Curt --- ## [Bought the wrong Pi Hat](https://forum.core-electronics.com.au/t/bought-the-wrong-pi-hat/22743)
**Author:** [@Andrew296365](https://forum.core-electronics.com.au/u/Andrew296365)\ **Replies:** 1\ **Last updated:** [26 June 2025 06:34 UTC](https://forum.core-electronics.com.au/t/bought-the-wrong-pi-hat/22743 "2025-06-26T06:34:46Z")
I wanted to buy the waveshare m.2 Poe hat+ but accidentally bought the waveshare Poe hat so then I went and bought the m.2 hat to put on the Poe hat but the ribbon cable is to short to get to the pi around the Poe hat … --- ## [Connecting sensors to a Raspberry Pi Zero](https://forum.core-electronics.com.au/t/connecting-sensors-to-a-raspberry-pi-zero/22649)
**Author:** [@Phil289055](https://forum.core-electronics.com.au/u/Phil289055)\ **Replies:** 3\ **Last updated:** [11 June 2025 06:18 UTC](https://forum.core-electronics.com.au/t/connecting-sensors-to-a-raspberry-pi-zero/22649 "2025-06-11T06:18:40Z")
Hello, I have a Gravity HX711 Weight Sensor and WaveShape I2C 16x02 LCD Display that I wish to connect to a Raspberry Pi Zero via a PiicoDev Adapter. I have found that the cables supplied with the weight sensor and LCD d… --- ## [DC Motor datasheet](https://forum.core-electronics.com.au/t/dc-motor-datasheet/22237)
**Author:** [@Prithul271176](https://forum.core-electronics.com.au/u/Prithul271176)\ **Replies:** 22\ **Last updated:** [9 May 2025 23:58 UTC](https://forum.core-electronics.com.au/t/dc-motor-datasheet/22237 "2025-05-09T23:58:50Z")
Hi, I am using a toy DC motor with dual shaft like this one (below) for a project and have been facing issues with starting the motor when it is slowed down. Seems like the initial torque is sometimes insufficient to get… --- ## [Clipping solar panel output voltage by 1 - 1.5V](https://forum.core-electronics.com.au/t/clipping-solar-panel-output-voltage-by-1-1-5v/21986)
**Author:** [@Grant290211](https://forum.core-electronics.com.au/u/Grant290211)\ **Replies:** 11\ **Last updated:** [11 March 2025 20:18 UTC](https://forum.core-electronics.com.au/t/clipping-solar-panel-output-voltage-by-1-1-5v/21986 "2025-03-11T20:18:13Z")
HI There I’m currently having an issue with a MTTP solar charge controller that has a max PV voltage input limit of 32V. The panel I have is meant to have a max output of 29.9V but the controller is reading sometimes 3… --- ## [SD Card Module Fat formatting issue](https://forum.core-electronics.com.au/t/sd-card-module-fat-formatting-issue/16274)
**Author:** [@Scott217693](https://forum.core-electronics.com.au/u/Scott217693)\ **Replies:** 11\ **Last updated:** [19 February 2025 23:06 UTC](https://forum.core-electronics.com.au/t/sd-card-module-fat-formatting-issue/16274 "2025-02-19T23:06:24Z")
I’m trying to setup this SD Card module (SD Card Module | Core Electronics Australia) with an arduino UNO and SanDisk SDHC 32GB card. I connect the SD Card module as shown in the diagram with the chip select connected t… --- ## [Polymer Lithium Ion Battery (LiPo) 3.7V 6000mAh (CE04381)](https://forum.core-electronics.com.au/t/polymer-lithium-ion-battery-lipo-3-7v-6000mah-ce04381/5763)
**Author:** [@Core](https://forum.core-electronics.com.au/u/Core)\ **Replies:** 4\ **Last updated:** [31 January 2025 03:59 UTC](https://forum.core-electronics.com.au/t/polymer-lithium-ion-battery-lipo-3-7v-6000mah-ce04381/5763 "2025-01-31T03:59:05Z")
This is a placeholder topic for “Polymer Lithium Ion Battery (LiPo) 3.7V 6000mAh” comments. This Lithium Polymer Ion based battery is a slim, lightweight battery that is perfect for a portable project! LIPO chemistry … --- ## [18650 Battery Holder (DFR0969)](https://forum.core-electronics.com.au/t/18650-battery-holder-dfr0969/21641)
**Author:** [@Martin286410](https://forum.core-electronics.com.au/u/Martin286410)\ **Replies:** 13\ **Last updated:** [17 January 2025 01:52 UTC](https://forum.core-electronics.com.au/t/18650-battery-holder-dfr0969/21641 "2025-01-17T01:52:57Z")
Is there any reason why I cannot or should not connect multiples of these in parallel? The reason I ask is for a model-train project where I need to make 12 volts available at up to 3 amps. I am already using one of t… --- ## [Debugging An Issue Only On Power Timer Hat](https://forum.core-electronics.com.au/t/debugging-an-issue-only-on-power-timer-hat/21622)
**Author:** [@Cameron165290](https://forum.core-electronics.com.au/u/Cameron165290)\ **Replies:** 5\ **Last updated:** [13 January 2025 23:12 UTC](https://forum.core-electronics.com.au/t/debugging-an-issue-only-on-power-timer-hat/21622 "2025-01-13T23:12:09Z")
Hiya, I’ve run into an annoying bug which I can only see when I run my project off battery power (and through a Power Timer Hat) Essentially, all I need to do, is for my RPi Pico W to read the ADC, and send the reading… --- ## [What’s the best PIR system for a small theme park](https://forum.core-electronics.com.au/t/what-s-the-best-pir-system-for-a-small-theme-park/21630)
**Author:** [@Sweetsound1245](https://forum.core-electronics.com.au/u/Sweetsound1245)\ **Replies:** 3\ **Last updated:** [13 January 2025 02:27 UTC](https://forum.core-electronics.com.au/t/what-s-the-best-pir-system-for-a-small-theme-park/21630 "2025-01-13T02:27:25Z")
Hi there! I am in the sound system business and a business reached out to me about opening a small theme park. Now it consists of 70 speakers and I was wondering what heavy duty PIR system I could use for the motion det… --- ## [Pi4 setup with Oak-D-Lite camera](https://forum.core-electronics.com.au/t/pi4-setup-with-oak-d-lite-camera/21255)
**Author:** [@Lee283496](https://forum.core-electronics.com.au/u/Lee283496)\ **Replies:** 20\ **Last updated:** [4 December 2024 03:38 UTC](https://forum.core-electronics.com.au/t/pi4-setup-with-oak-d-lite-camera/21255 "2024-12-04T03:38:18Z")
I’m tying and failing to get my Raspberry Pi 4 B setup with Oak-D-Lite camera as per the online guide (Integrated Computer Vision Package - OAK-D Lite With Raspberry Pi Set Up - Tutorial Australia) which uses Debian Bull… --- ## [LIS3DH not at address 0x19](https://forum.core-electronics.com.au/t/lis3dh-not-at-address-0x19/21270)
**Author:** [@Wade282079](https://forum.core-electronics.com.au/u/Wade282079)\ **Replies:** 4\ **Last updated:** [21 November 2024 14:05 UTC](https://forum.core-electronics.com.au/t/lis3dh-not-at-address-0x19/21270 "2024-11-21T14:05:47Z")
I hooked up the PiicoDev RP2040 to LIS3DH using qwiic cable. I was able to run the \*.py code and it told me there was nothing at 0x19 (the address shown in the learning video). What is broken? Software or LIS3DH or I2C p… --- ## [Accessing RGB Light on Unexpected Maker ProS3](https://forum.core-electronics.com.au/t/accessing-rgb-light-on-unexpected-maker-pros3/21208)
**Author:** [@Chris282737](https://forum.core-electronics.com.au/u/Chris282737)\ **Replies:** 9\ **Last updated:** [14 November 2024 08:24 UTC](https://forum.core-electronics.com.au/t/accessing-rgb-light-on-unexpected-maker-pros3/21208 "2024-11-14T08:24:38Z")
Hi there Ive recently purchased the Unexpected Maker ProS3 board. I wiped the board and uploaded my first test code, where I try to access the RGB Light. Ive tried numerous tests but for some reason it still does not … --- ## [LoRa gateway at Core Electronics office](https://forum.core-electronics.com.au/t/lora-gateway-at-core-electronics-office/21106)
**Author:** [@Prithul271176](https://forum.core-electronics.com.au/u/Prithul271176)\ **Replies:** 5\ **Last updated:** [3 November 2024 13:01 UTC](https://forum.core-electronics.com.au/t/lora-gateway-at-core-electronics-office/21106 "2024-11-03T13:01:01Z")
Hi guys, just curious about the LoRa gateway that you have at your office, mentioned in several tutorials on LoRa. Doing my market research before purchasing. Thanks, PC [Next page](https://forum.core-electronics.com.au/c/general/core-electronics-australia/36.md?page=1)