WIFI & BLE ESP32 panic SOS button
- Based on ESP32
- RGB led
- RG led
- Charging led
- Beeper
- Micro USB for charging
- One button
- CR2450 battery
- Fit in OKW BODY CASE
DIY GSM FR4 cell phone
- charlieplexed 22x5 LED display
- 16 keys
- ARM atsamd21 or Atmega328
- sim800l module, QI charging
- ATSAM21E18
- arduino ZERO compatible
- USB programming
- RF4 PCB case 2x 10cm x 10cm batch
Single board nixie clock
- Single board
- Modular power supply
- Ws2812 multicolor tube backlit
- DS3231 precise RTC
- DS18b20 temperature
- Arduino compatible
Nixie / vfd tube style desktop clock
- more colors
- look like VFD with ice blue leds
- simple circuit
- one low voltage ... 3V
- low consumption
- compact design
- "transparent" digits
Some features:
DS3231, alarms, backup battery, time talking ....
Open game console / Gamebuino clone
- This is Gamebuino clone,
- More about this game console you can read here http://gamebuino.com/
- Very easy to assembly, minimum components
PYcARD (Jean-Luc)
Python+Arduino on card
- wallet development platform :)
- badge / wrist band holes ( wearable )
- compatible board with micropython (CircuitPython)
- extra thin charlieplexed 110 LED display
- I2C header for extra sensors ( TOL distance, pressure, compass, gas )
- DS3231 > precise RTC
- SHT21 > temperature, humidity
- BME280 > temperature, humidity, atmospheric pressure
- RGB led
- Power led
- 3+1 buttons
- micro USB or PCB USB
- sd card reader
- CR2032 battery optional power supply or DS3231 backup
- buzzer
- Enig gold 2mm PCB board
Blink Coin cell toys collection
Learn to solder SMD kits family
- Fire engine
- Light house
- Bulldozer
- CCCP rocket
- Police car
- Sheriff car
- Green Robot
- Pink heart
- UFO alien
- Ambulance
Retro led wrist watches
FEATURES
- display QDSP - 6064
- Atmega328
- Temperature sensor in MCU and DS3231
- All important communication signals on headers
- Arduino compatible
- You can use standard CR2032 battery, sold without.
- high precise TCXO rtc clock DS3231
- time talking (experimental)
- 35mm round black board
- motion display activation
FUNCTIONS
- time
- date
- seconds
- day of week automatically calculated
- day in year
- week in year
- max. days in actual month
- temperature CPU
- battery voltage
- RTTTL melody player
- Alarm 1, configurable time, date, days in week
- Alarm 2, configurable minute, hourly beep or time talk
- sunset time for selected earth position and date (experimental function)
- sunrise time for selected earth position and date (experimental function)
- moon phase (experimental function)
- IIC scaner, list address of connected I2C devices
BPW34 solar powered led watch
Absolute world unique, one of kind and world first wristwatch
powered with Supercapacitor
USB development boards
- Picoduino - ATTINY85
- WINXI - SAMD21E18
- DIXI - SAMD11C14
- PIXI32 - pic32mx250f128b
- USB Mass storage card for business cards
- mini PCIE python card
Coin cell battery chargers
Two battery holders
- LIR2450
- LIR2032 LIR2025 LIR2016
+ Coin cell battery emulator
LED matrix game console
Games:
- pong
- falling stars
- invades
- snake
- breakout
- car race
- tetris
- jump arcade
Charlieplexed LED displays
Segmented
- -30 led
- any color
- ultra thin .... etc. on 0.8mm board
- 6 GPIO
- ideal for wrist watch
Matrix
- 44mm x 22mm
- 110 led
- 5x22 led matris
- 11 GPIO
Solar harvesting from BPW34
- -4x BPW34 photodiodes aka solar cell
(plastic diodes, resistant to damage against glass solar cell)
- Up to 10F supercapacior
(You can use bigger capacity but 10F is optimal for charge in one sunny day)
- 4 hours operation in night depends on intensity
- Auto night on
- step up converter effective use all stored energy, discharge scap until 0.3V !!!!!!
TWO operation modes ...
- 1. Night mode - output is activated in night
- 2.Pulse mode - output is activated after capacitor is charged to startup voltag
