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Peter Dalmaris

@peterdalmaris.bsky.social
96 followers 24 following 1.3K posts

Engineer, educator, and author. Passionate about electronics, programming, and STEM education. Sharing insights and projects from Tech Explorations and beyond.

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Peter Dalmaris @peterdalmaris.bsky.social · 26/09/2026
What changes when PCB design moves beyond the basics? BGA routing, signal integrity, eMMC, power delivery and thermal management bring very different challenges. Peter explores five of them and the thinking behind solving them. #PCBDesign #KiCad #Electronics
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Peter Dalmaris @peterdalmaris.bsky.social · 23/09/2026
Arduino's first AI board — the Uno Q. Dual-brain architecture: Qualcomm AI processor + STM32 microcontroller in the classic UNO form factor. I tested it. Here's my honest review + 10-min video: app.txplo.re/unoq1
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Peter Dalmaris @peterdalmaris.bsky.social · 23/09/2026
Two new posts on Wrappa, a local-first IoT platform built on Node-RED by two Australians. No cloud, no subscription, drag-and-drop flows on a Raspberry Pi hub. Genuinely refreshing in a market dominated by big-tech IoT. System review: txplo.re/wrappa1 BMP280 demo: txplo.re/wrappa2
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Peter Dalmaris @peterdalmaris.bsky.social · 23/09/2026
Part 2 of my Arduino Uno Q series: building a real AI person detector. USB webcam + AI inference + LED matrix output. 40-min tutorial covering the bridge between Python and Arduino. app.txplo.re/unoq2 Missed part 1? Start here: app.txplo.re/unoq1
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Peter Dalmaris @peterdalmaris.bsky.social · 23/09/2026
New review published on Tech Explorations: CrowPanel Advanced 7" ESP32-P4 Smart Display. This device is a powerful platform designed for embedded GUIs and edge-AI applications. Article + YouTube hands-on video. app.txplo.re/crowpanel1 #ESP32 #Embedded #IoT #Electronics #TechExplorations
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Peter Dalmaris @peterdalmaris.bsky.social · 22/09/2026
New course: design a 64 GB USB thumb drive in KiCad 10. Covers BGA fanout at 0.5 mm pitch, USB differential pair routing, eMMC signal integrity, and a 4-layer stackup. 30% off until Sunday 24 May. txplo.re/smartusb #KiCad #PCBdesign
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Peter Dalmaris @peterdalmaris.bsky.social · 22/09/2026
New blog post: I explore the impulse response of first-order filters, with a full lecture video included. See how low-pass and high-pass filters react to sharp signals, and learn how to analyze their behavior in your own circuits. Read and watch: app.txplo.re/impulse
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Peter Dalmaris @peterdalmaris.bsky.social · 21/09/2026
New lectures in High Speed PCB Design with KiCad with the repair and first boot of the LattePanda Mu boards. It includes my PCB rework under a microscope, new buck converters, fixing solder bridges rewiring around R46. Both boards are now alive! Details: app.txplo.re/dfd473
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Peter Dalmaris @peterdalmaris.bsky.social · 20/09/2026
Arduino's first AI board — the Uno Q. Dual-brain architecture: Qualcomm AI processor + STM32 microcontroller in the classic UNO form factor. I tested it. Here's my honest review + 10-min video: app.txplo.re/unoq1
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Peter Dalmaris @peterdalmaris.bsky.social · 20/09/2026
Two new posts on Wrappa, a local-first IoT platform built on Node-RED by two Australians. No cloud, no subscription, drag-and-drop flows on a Raspberry Pi hub. Genuinely refreshing in a market dominated by big-tech IoT. System review: txplo.re/wrappa1 BMP280 demo: txplo.re/wrappa2
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Peter Dalmaris @peterdalmaris.bsky.social · 20/09/2026
Part 2 of my Arduino Uno Q series: building a real AI person detector. USB webcam + AI inference + LED matrix output. 40-min tutorial covering the bridge between Python and Arduino. app.txplo.re/unoq2 Missed part 1? Start here: app.txplo.re/unoq1
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Peter Dalmaris @peterdalmaris.bsky.social · 20/09/2026
New review published on Tech Explorations: CrowPanel Advanced 7" ESP32-P4 Smart Display. This device is a powerful platform designed for embedded GUIs and edge-AI applications. Article + YouTube hands-on video. app.txplo.re/crowpanel1 #ESP32 #Embedded #IoT #Electronics #TechExplorations
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Peter Dalmaris @peterdalmaris.bsky.social · 19/09/2026
New course: design a 64 GB USB thumb drive in KiCad 10. Covers BGA fanout at 0.5 mm pitch, USB differential pair routing, eMMC signal integrity, and a 4-layer stackup. 30% off until Sunday 24 May. txplo.re/smartusb #KiCad #PCBdesign
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Peter Dalmaris @peterdalmaris.bsky.social · 19/09/2026
New blog post: I explore the impulse response of first-order filters, with a full lecture video included. See how low-pass and high-pass filters react to sharp signals, and learn how to analyze their behavior in your own circuits. Read and watch: app.txplo.re/impulse
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Peter Dalmaris @peterdalmaris.bsky.social · 18/09/2026
I’m building a new course on filters—learn RC & RL filters with Python, CircuitLab, and the Analog Discovery 3. Simulate it, build it, see it. app.txplo.re/filters #Electronics #STEM #Python #CircuitDesign #AD3
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Peter Dalmaris @peterdalmaris.bsky.social · 18/09/2026
New lectures in High Speed PCB Design with KiCad with the repair and first boot of the LattePanda Mu boards. It includes my PCB rework under a microscope, new buck converters, fixing solder bridges rewiring around R46. Both boards are now alive! Details: app.txplo.re/dfd473
001
Peter Dalmaris @peterdalmaris.bsky.social · 17/09/2026
Arduino's first AI board — the Uno Q. Dual-brain architecture: Qualcomm AI processor + STM32 microcontroller in the classic UNO form factor. I tested it. Here's my honest review + 10-min video: app.txplo.re/unoq1
010
Peter Dalmaris @peterdalmaris.bsky.social · 17/09/2026
Two new posts on Wrappa, a local-first IoT platform built on Node-RED by two Australians. No cloud, no subscription, drag-and-drop flows on a Raspberry Pi hub. Genuinely refreshing in a market dominated by big-tech IoT. System review: txplo.re/wrappa1 BMP280 demo: txplo.re/wrappa2
000
Peter Dalmaris @peterdalmaris.bsky.social · 17/09/2026
Part 2 of my Arduino Uno Q series: building a real AI person detector. USB webcam + AI inference + LED matrix output. 40-min tutorial covering the bridge between Python and Arduino. app.txplo.re/unoq2 Missed part 1? Start here: app.txplo.re/unoq1
000
Peter Dalmaris @peterdalmaris.bsky.social · 17/09/2026
New review published on Tech Explorations: CrowPanel Advanced 7" ESP32-P4 Smart Display. This device is a powerful platform designed for embedded GUIs and edge-AI applications. Article + YouTube hands-on video. app.txplo.re/crowpanel1 #ESP32 #Embedded #IoT #Electronics #TechExplorations
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Peter Dalmaris @peterdalmaris.bsky.social · 16/09/2026
New course: design a 64 GB USB thumb drive in KiCad 10. Covers BGA fanout at 0.5 mm pitch, USB differential pair routing, eMMC signal integrity, and a 4-layer stackup. 30% off until Sunday 24 May. txplo.re/smartusb #KiCad #PCBdesign
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Peter Dalmaris @peterdalmaris.bsky.social · 16/09/2026
New blog post: I explore the impulse response of first-order filters, with a full lecture video included. See how low-pass and high-pass filters react to sharp signals, and learn how to analyze their behavior in your own circuits. Read and watch: app.txplo.re/impulse
100
Peter Dalmaris @peterdalmaris.bsky.social · 15/09/2026
New lectures in High Speed PCB Design with KiCad with the repair and first boot of the LattePanda Mu boards. It includes my PCB rework under a microscope, new buck converters, fixing solder bridges rewiring around R46. Both boards are now alive! Details: app.txplo.re/dfd473
000
Peter Dalmaris @peterdalmaris.bsky.social · 14/09/2026
Arduino's first AI board — the Uno Q. Dual-brain architecture: Qualcomm AI processor + STM32 microcontroller in the classic UNO form factor. I tested it. Here's my honest review + 10-min video: app.txplo.re/unoq1
000
Peter Dalmaris @peterdalmaris.bsky.social · 14/09/2026
Two new posts on Wrappa, a local-first IoT platform built on Node-RED by two Australians. No cloud, no subscription, drag-and-drop flows on a Raspberry Pi hub. Genuinely refreshing in a market dominated by big-tech IoT. System review: txplo.re/wrappa1 BMP280 demo: txplo.re/wrappa2
000
Peter Dalmaris @peterdalmaris.bsky.social · 14/09/2026
Part 2 of my Arduino Uno Q series: building a real AI person detector. USB webcam + AI inference + LED matrix output. 40-min tutorial covering the bridge between Python and Arduino. app.txplo.re/unoq2 Missed part 1? Start here: app.txplo.re/unoq1
000
Peter Dalmaris @peterdalmaris.bsky.social · 14/09/2026
New review published on Tech Explorations: CrowPanel Advanced 7" ESP32-P4 Smart Display. This device is a powerful platform designed for embedded GUIs and edge-AI applications. Article + YouTube hands-on video. app.txplo.re/crowpanel1 #ESP32 #Embedded #IoT #Electronics #TechExplorations
000
Peter Dalmaris @peterdalmaris.bsky.social · 13/09/2026
New course: design a 64 GB USB thumb drive in KiCad 10. Covers BGA fanout at 0.5 mm pitch, USB differential pair routing, eMMC signal integrity, and a 4-layer stackup. 30% off until Sunday 24 May. txplo.re/smartusb #KiCad #PCBdesign
000
Peter Dalmaris @peterdalmaris.bsky.social · 13/09/2026
New blog post: I explore the impulse response of first-order filters, with a full lecture video included. See how low-pass and high-pass filters react to sharp signals, and learn how to analyze their behavior in your own circuits. Read and watch: app.txplo.re/impulse
100
Peter Dalmaris @peterdalmaris.bsky.social · 12/09/2026
I’m building a new course on filters—learn RC & RL filters with Python, CircuitLab, and the Analog Discovery 3. Simulate it, build it, see it. app.txplo.re/filters #Electronics #STEM #Python #CircuitDesign #AD3
100
Peter Dalmaris @peterdalmaris.bsky.social · 12/09/2026
New lectures in High Speed PCB Design with KiCad with the repair and first boot of the LattePanda Mu boards. It includes my PCB rework under a microscope, new buck converters, fixing solder bridges rewiring around R46. Both boards are now alive! Details: app.txplo.re/dfd473
000
Peter Dalmaris @peterdalmaris.bsky.social · 11/09/2026
Arduino's first AI board — the Uno Q. Dual-brain architecture: Qualcomm AI processor + STM32 microcontroller in the classic UNO form factor. I tested it. Here's my honest review + 10-min video: app.txplo.re/unoq1
000
Peter Dalmaris @peterdalmaris.bsky.social · 11/09/2026
Two new posts on Wrappa, a local-first IoT platform built on Node-RED by two Australians. No cloud, no subscription, drag-and-drop flows on a Raspberry Pi hub. Genuinely refreshing in a market dominated by big-tech IoT. System review: txplo.re/wrappa1 BMP280 demo: txplo.re/wrappa2
000
Peter Dalmaris @peterdalmaris.bsky.social · 11/09/2026
Part 2 of my Arduino Uno Q series: building a real AI person detector. USB webcam + AI inference + LED matrix output. 40-min tutorial covering the bridge between Python and Arduino. app.txplo.re/unoq2 Missed part 1? Start here: app.txplo.re/unoq1
001
Peter Dalmaris @peterdalmaris.bsky.social · 11/09/2026
New review published on Tech Explorations: CrowPanel Advanced 7" ESP32-P4 Smart Display. This device is a powerful platform designed for embedded GUIs and edge-AI applications. Article + YouTube hands-on video. app.txplo.re/crowpanel1 #ESP32 #Embedded #IoT #Electronics #TechExplorations
000
Peter Dalmaris @peterdalmaris.bsky.social · 10/09/2026
New course: design a 64 GB USB thumb drive in KiCad 10. Covers BGA fanout at 0.5 mm pitch, USB differential pair routing, eMMC signal integrity, and a 4-layer stackup. 30% off until Sunday 24 May. txplo.re/smartusb #KiCad #PCBdesign
000
Peter Dalmaris @peterdalmaris.bsky.social · 10/09/2026
New blog post: I explore the impulse response of first-order filters, with a full lecture video included. See how low-pass and high-pass filters react to sharp signals, and learn how to analyze their behavior in your own circuits. Read and watch: app.txplo.re/impulse
100
Peter Dalmaris @peterdalmaris.bsky.social · 09/09/2026
New lectures in High Speed PCB Design with KiCad with the repair and first boot of the LattePanda Mu boards. It includes my PCB rework under a microscope, new buck converters, fixing solder bridges rewiring around R46. Both boards are now alive! Details: app.txplo.re/dfd473
001
Peter Dalmaris @peterdalmaris.bsky.social · 08/09/2026
Arduino's first AI board — the Uno Q. Dual-brain architecture: Qualcomm AI processor + STM32 microcontroller in the classic UNO form factor. I tested it. Here's my honest review + 10-min video: app.txplo.re/unoq1
000
Peter Dalmaris @peterdalmaris.bsky.social · 08/09/2026
Two new posts on Wrappa, a local-first IoT platform built on Node-RED by two Australians. No cloud, no subscription, drag-and-drop flows on a Raspberry Pi hub. Genuinely refreshing in a market dominated by big-tech IoT. System review: txplo.re/wrappa1 BMP280 demo: txplo.re/wrappa2
000
Peter Dalmaris @peterdalmaris.bsky.social · 08/09/2026
Part 2 of my Arduino Uno Q series: building a real AI person detector. USB webcam + AI inference + LED matrix output. 40-min tutorial covering the bridge between Python and Arduino. app.txplo.re/unoq2 Missed part 1? Start here: app.txplo.re/unoq1
000
Peter Dalmaris @peterdalmaris.bsky.social · 08/09/2026
New review published on Tech Explorations: CrowPanel Advanced 7" ESP32-P4 Smart Display. This device is a powerful platform designed for embedded GUIs and edge-AI applications. Article + YouTube hands-on video. app.txplo.re/crowpanel1 #ESP32 #Embedded #IoT #Electronics #TechExplorations
001
Peter Dalmaris @peterdalmaris.bsky.social · 07/09/2026
New course: design a 64 GB USB thumb drive in KiCad 10. Covers BGA fanout at 0.5 mm pitch, USB differential pair routing, eMMC signal integrity, and a 4-layer stackup. 30% off until Sunday 24 May. txplo.re/smartusb #KiCad #PCBdesign
000
Peter Dalmaris @peterdalmaris.bsky.social · 07/09/2026
New blog post: I explore the impulse response of first-order filters, with a full lecture video included. See how low-pass and high-pass filters react to sharp signals, and learn how to analyze their behavior in your own circuits. Read and watch: app.txplo.re/impulse
100
Peter Dalmaris @peterdalmaris.bsky.social · 06/09/2026
I’m building a new course on filters—learn RC & RL filters with Python, CircuitLab, and the Analog Discovery 3. Simulate it, build it, see it. app.txplo.re/filters #Electronics #STEM #Python #CircuitDesign #AD3
100
Peter Dalmaris @peterdalmaris.bsky.social · 06/09/2026
New lectures in High Speed PCB Design with KiCad with the repair and first boot of the LattePanda Mu boards. It includes my PCB rework under a microscope, new buck converters, fixing solder bridges rewiring around R46. Both boards are now alive! Details: app.txplo.re/dfd473
000
Peter Dalmaris @peterdalmaris.bsky.social · 05/09/2026
Arduino's first AI board — the Uno Q. Dual-brain architecture: Qualcomm AI processor + STM32 microcontroller in the classic UNO form factor. I tested it. Here's my honest review + 10-min video: app.txplo.re/unoq1
000
Peter Dalmaris @peterdalmaris.bsky.social · 05/09/2026
Two new posts on Wrappa, a local-first IoT platform built on Node-RED by two Australians. No cloud, no subscription, drag-and-drop flows on a Raspberry Pi hub. Genuinely refreshing in a market dominated by big-tech IoT. System review: txplo.re/wrappa1 BMP280 demo: txplo.re/wrappa2
000
Peter Dalmaris @peterdalmaris.bsky.social · 05/09/2026
Part 2 of my Arduino Uno Q series: building a real AI person detector. USB webcam + AI inference + LED matrix output. 40-min tutorial covering the bridge between Python and Arduino. app.txplo.re/unoq2 Missed part 1? Start here: app.txplo.re/unoq1
000
Peter Dalmaris @peterdalmaris.bsky.social · 05/09/2026
New review published on Tech Explorations: CrowPanel Advanced 7" ESP32-P4 Smart Display. This device is a powerful platform designed for embedded GUIs and edge-AI applications. Article + YouTube hands-on video. app.txplo.re/crowpanel1 #ESP32 #Embedded #IoT #Electronics #TechExplorations
000