When powering the Photon from the USB connector, make sure to use a quality cable to minimize IR drops (current x resistance = voltage) in the wiring. Deep sleep quiescent current is typically 80uA (Please refer to Recommended Operating Conditions for more info). Typical average current consumption is 80mA with 5V VIN with Wi-Fi on. (Please refer to Absolute Maximum Ratings for more info). 3V3 can also be used as an output, but has a limited overhead of only 100mA available. When used as an output, the max load on VIN is 1A.
#Vin to pin software download series
When the Photon is powered via the USB port, VIN will output a voltage of approximately 4.8VDC due to a reverse polarity protection series schottky diode between V+ of USB and VIN.
If power is supplied directly to the VIN pin, the voltage should be regulated between 3.6VDC and 5.5VDC. Power to the Photon is supplied via the on-board USB Micro B connector or directly via the VIN pin. 18 Mixed-signal GPIO and advanced peripherals.
These make it possible to surface mount the Photon directly onto your PCB. To minimize space required, the Photon form factor without headers has castellated edges. Prototyping is easy with headers as the Photon plugs directly into standard breadboards and perfboards, and may also be mounted with 0.1" pitch female headers on a PCB. The Photon comes in two physical forms: with headers and without. The design is open source, so when you're ready to integrate the Photon into your product, you can.
To get you started quickly, Particle adds a rock solid 3.3VDC SMPS power supply, RF and user interface components to the PØ on a small single-sided PCB called the Photon. Particle combines a powerful ARM Cortex M3 micro-controller with a Broadcom Wi-Fi chip in a tiny thumbnail-sized module called the PØ (P-zero). Particle's Internet of Things hardware development kit, the Photon, provides everything you need to build a connected product. Particle.publish("my-event","The internet just got smarter!")