Up2stream Mini & Pro v3 Audio Boards Add Bluetooth 5.0, USB Sound Card Mode and More

Up2stream Pro v3 smart audio board

Rakoit launched Up2stream WiFi audio board in 2018, followed by Up2stream Pro board in 2019 with additional Bluetooth, Ethernet, and USB interfaces. Those boards are designed to bring network connectivity to speakers for audio streaming. The company has now launched updates with the launch of Up2stream Mini v3 and Up2stream Pro v3 connected audio boards. Both Up2Stream Mini v3 and Pro v3 have gotten similar updates with the ability to use the board as a micro USB sound card so you can directly plug it into a PC to make it work as a USB DAC. The boards also added SPDIF out, an ADC KEY input for external buttons, two I/O for extensions such as volume knobs. Up2stream Mini v3 now includes both WiFi and Bluetooth 5.0 connectivity. Shared key features and specifications of the boards are as follows:  Audio Output – 3.5mm audio jack and header (shared), I2S & S/PDIF (44.1 kHz) headers Input (Pro v3 only)–  3.5mm audio …

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Make PCB’s with a Modified Lexmark Laser Printer

Make PCB Lexmark Laser Printer

PCB manufacturing services are pretty cheap and fast nowadays. But imagine some kind of highly transmissible virus hits the globe, somehow the whole global economy shuts down, and you are stuck alone at home with nothing but a Lexmark laser printer. What can you do? Well, you can make your own PCBs! No paper involved. That’s exactly what Vítor Barbosa did by converting a Lexmark E460(DN) laser printer into a PCB making machine, not because of COVID-19, but instead, because of the price and delays of ordering PCBs in Brazil. Using a laser printing to make your own PCB like take some work, notably to strip the printer of unused parts such as the fuser and fit it with Arduino Nano or Pro Mini board, an aluminum guide, some resistors and more. The modifications are all explained on Hackaday.io, and this is not a new idea as the project was derived from a 5-year project based on a Lexmark E260, …

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Bored during Quarantine? Get some Soldering Kits to keep you Busy (Crowdfunding & Alternatives)

Quarantine Soldering Kits

I’ve heard some of you are forced to stay at home for some reason… HHTronik has decided to design what they call “Quarantine Occupation Kits” which are actually open-source hardware soldering kits of varying complexity. Five soldering kits are available: I learn soldering TH (Super Easy) – Ten solder joints with one LED, one resistor, one switch and a CR2032 coin cell holder using through-hole components. The end results is a flashlight board I learn soldering SMD (Easy) – Same as above but with SMD (surface mount) components, and a more compact PCB. I learn soldering Boost Edition (Moderate) – More complex board with a bigger variety of parts and footprints including some slightly smaller and unusual parts (side view white LEDs, SOT23-6, SOT23-3, and 0805 passives). The assembled board is a step up” or “boost” converter taking 3V from the battery and bring it up to 6V to light up the LEDs. I.CAN.SOLDER SMD Challenge (Hard) – Some components …

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SimplePnP is a Low-Cost, Open Source Hardware Pick-and-Place Machine (Crowdfunding)

SimplePnP OSHW Pick-and-Place Machine

If you have a small production run for your board, it may not be cost-effective to ask a factory to manufacture it for you, and assembling the boards entirely by hand will be a time-consuming process. Getting a pick-and-place machine to automate the process would save time, but even the cheaper models on Aliexpress cost several thousand dollars. Citrus CNC tries to address the cost issue with the SimplePnP open source hardware pick-and-place machine that brings the price down to several hundred dollars. SimplePnP key features and specifications: MCU – Microchip Atmega328p running GRBL firmware Motor Drivers – TMC2209 stepper for two-phase stepper motors Word Area – 300 mm (X) x 300 mm (Y) Z Travel – 23 mm Components per Hour – 750 with vision assist Component Size – As small as 0402 (1005 metric) Vacuum Heads – Single vacuum head (base model), or optional dual-head Nozzle System – Juki 5xx with tool changer capable holder Vision – Top-vision …

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SwitchTrick Switching Power Supply Board Helps you Test your Breadboard Circuit

We’ve covered several power supplies for breadboards over the years including toaster breadboard power supply with variable voltage output, or the portable, battery-powered MEGO power supply that allows you to power your project on the go. The SwitchTrick is another one of those breadboard power supplies but with testing in mind, as it takes input from various sources, and with jumper selection for voltage from 1.8V to 6V allows you to easily simulate different battery voltage levels, or the test the overvoltage protection of your circuit for example. SwitchTrick key features and specifications: Step-down converter – TI TPS62160 3-17V step down-convertor adjustable from 0.9-6V out at 1A. Power Input – 3V to 17V via 5.5×2.1mm power jack for 9V battery or wall supply Micro USB connector for 5V 2-pin JSY PH connector for battery 2x large plates holes for alligator clips Power Output (selectable by a jumper) 1.8V 2.5V 3.0V (e.g. for simulating an almost depleted lithium battery) 3.3V 3.7V …

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Piper Computer Kit 2 is a DIY Raspberry Pi 3 Computer for Kids’ Education

Piper Computer 2

Kids can easily build theirs own computer and then learn more about electronics and programming thanks to Piper Computer Kit 2. The kit is based on Raspberry Pi 3 SBC, a 9″ display, a power bank, and all bits and pieces required for assembly. There’s also a 16GB microSD with the OS and the company’s PiperCode software to learn the basics of programming. The complete kit comes with the following items: SBC – Raspberry Pi 3 Model B Storage – 16GB MicroSD card Display – 9″ 1024 x 600 LCD display with HDMI cable Audio – Integrated speaker 25+ laser-etched wooden and acrylic pieces 50+ hardware pieces 20+ electronic components Battery – 7,800 mAh rechargeable battery/power bank Phillips-head screwdriver 8 square foot laminated blueprint USB Mouse This is whay it looks like after around two hours of assembly time. Kids can then start playing Raspberry Pi Edition Mineccraft and some mini-games, and get started with PiPerCode projects first using Google’s …

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Up2Stream Pro HiFi Audio Receiver Board Streams Audio over WiFi, Bluetooth, Ethernet, or USB

Up2Stream Pro

Last December, we wrote about Up2Stream WiFi audio module designed for people wanting to build their own DIY wireless speakers. The module is based on  MediaTek MT7688AN MIPS processor with 64MB DDR2 and 16MB flash storage The module also comes with a small baseboard allowing for an easier connection to speakers. The company has now introduced Up2Stream Pro model based on the same module, but with a baseboard adding more features including Bluetooth, Ethernet, USB, and audio jacks. Up2Stream Pro key features and specifications: Audio Output – 3.5mm AUX jack and I2S header Input –  3.5mm AUX-in SNR: 91db THD: 0.03% Sample rate –  24bit up to 192kHz FLAC, Wav, and APE codec supported, but NOT SBC, APT-X, APT-X HD, or LDAC. Multiroom & Multizone support EQ control Connectivity – Ethernet, WiFi, and Bluetooth 5.0 Streaming Protocols – Airplay, DLNA, UPnP, Spotify Connect Compatible Services – Spotify, Deezer, Tidal, Qobuz, Napster, iHeartRadio. Local Streaming from NAS or USB USB – …

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Review of SainSmart Genmitsu CNC Router 3018-MX3

Review Genmitsu CNC Router 3018-MX3

Hey Karl here. Back in September of 2018 I reviewed the Sainsmart Genmitsu 3018 Pro. Sainsmart has now further upgraded the 3018 and asked for a review of it. Let’s take a look at the changes and the evolution of the 3018 and see if the increase in price is worth it. You can find the original 3018 on sale for about $200. The pro version can be found for about $250, and the CNC Router 3018-MX3  for $350. I won’t go into too much detail like I did in the previous review. I suggest reading the pro version after reading this one. Most of the experiences and solutions apply to this version. Build Building the CNC Router 3018-MX3 was a breeze. The instructions are fantastic. I struggled a little bit to read the small booklet that came with the kit and afterwards I found a PDF on the Sainsmart wiki. The instructions go into a level of detail I …

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