Kris Winer of Pesky Products designed a brushed motor UAV flight controller using the ESP8266:
UAV flight controller [..] using the ESP8266EX Tensilica Xtensa system-on-chip, the EM7180+MPU9250+MS5637 (Ultimate Sensor Fusion Solution) for motion sensing and low on-resistance (20 mOhm) n-type DMN2041L MOSFets to drive up to four brushed motors using PWM signals
PeskyProducts has shared the board on OSH Park:
JacobTkeio created this emergency light which would be handy for power outages:
Dark-activated, 2.8 candela white LED with wide 160-degree light output powered by a 9 V battery.
[Written by OSH Park engineer Jenner Hanni on Wickerbox Electronics]
David A Mellis designed a DIY 2G Cellphone using the Quectel GSM/GPRS M10 2G module and the Arduino GSM Shield library. I updated David’s design with his permission and replaced the M10 with a Quectel UMTS/HSDPA UC15 3G module.
The modules have different pinouts, slightly different packages, and the UC15 takes 3.3V-4.3V while the M10 took 3.3V-4.6V, which accommodates a 3.7V LiPo battery.
I got the boards back and did an initial build, then handed things over to a local software developer who developed and presented the working cellphone at !!Con:
The Eagle schematic and layout, along with the development notes and bill of materials are available for the first version of the hardware:
“GSM (Global System for Mobile Communications, originally Groupe Spécial Mobile), is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe protocols for second generation (2G) digital cellular networks used by mobile phones.” -Wikipedia
“General packet radio service (GPRS) is a packet oriented mobile data service on the 2G and 3G cellular communication system’s global system for mobile communications (GSM).” -Wikipedia
“UMTS specifies a complete network system, which includes the radio access network (UMTS Terrestrial Radio Access Network, or UTRAN), the core network (Mobile Application Part, or MAP) and the authentication of users via SIM (subscriber identity module) cards.” -Wikipedia
“High-Speed Downlink Packet Access (HSDPA) is an enhanced 3G (third-generation) mobile-telephony communications protocol in the High-Speed Packet Access (HSPA) family, also dubbed 3.5G, 3G+, or Turbo 3G, which allows networks based on Universal Mobile Telecommunications System (UMTS) to have higher data-transfer speeds and capacity.” -Wikipedia
This project is released under the MIT License. Click here for more information.
JamesCannan created a simple way of monitoring plants with Bluetooth Low Energy (BLE):
Monitor temperature, humidity, pressure, moisture, light, and has I2C extension pins so that you can add other modules. Information is sent to a phone, and notifies you when it needs something.
Cannonball2134/EasyPlanter
CBC reports that Canada Post workers will be locked out as of Friday, July 8th, putting a halt to deliveries.
Our Free Shipping option is delivered by Canada Post, so all Free Shipping to Canada will be held up until the lockout is over, at which point it’ll be delivered.
It has been a while since the last LED related article. Was experimented the linear current source, its pros and cons and the field of application. Now arises the need of a small version, handling the same high power, things that are contrapposed in the linear regulator. I need something that I can bring with […]
via Tiny, robust, low cost, fail-safe LED driver: the Glighter-S project — ALEA
Eric Brombaugh designed this board which pairs ARM Cortex M4 processor with a Lattice FPGA:
USB, Micro SD, PMOD and GPIO interfaces allow development of complex projects in control and signal processing.
The microcontroller firmware and FPGA hardware source is hosted on GitHub:
/f303_ice5
emeb has shared the board on OSH Park:
This design files and source code are hosted on GitHub:
/roomba_wall_v2
Petezah has shared the board on OSH Park:
For Christmas I designed and built six steam-punk owl clocks that have a novel faux Nixie Tube display. Nixie tubes are wonderful with their glass tube bodies and brightly glowing numerals, but think how wonderful a solid-state low-power any color “Nixie Tube” would be! The basic idea is that you position an LED at the […]
You think you’ve seen everything that there is to see regarding blinking LEDs and then a simple little trick proves you wrong. Our friend [Zach Fredin], aka [Zakqwy], added a pander mode to his blinky board which shows the Hackaday Jolly Wrencher in a Persistence of Vision mode. We love pandering, and obviously you just…
via Blinktronicator’s POV Sends Our Eyebrows Rocketing Skyward — Hackaday
The board is shared on OSH Park:
OSH Park 