Update README.md

README.md

@@ -5,6 +5,15 @@ SparkFun GNSS L1/L5 Breakout- NEO-F10N, SMA
 
 [*SparkFun GNSS L1/L5 Breakout - NEO-F10N, SMA (GPS-24114)*](https://www.sparkfun.com/products/24114)
 
+The SparkFun GNSS L1/L5 Breakout - NEO-F10N, SMA is a standard precision GNSS board with meter-level positional accuracy. The NEO-F10N uses the L1/L5 bands instead of the more commonly seen L1/L2 bands. Utilizing the L5 band, the NEO-F10N delivers improved performance under challenging urban environments. The L5 signals fall within the protected ARNS (aeronautical radio navigation service) frequency band, leading to less RF interference.
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+This breakout supports the concurrent reception of three GNSS constellations: GPS, Galileo, and BeiDou. The proprietary dual-band multipath mitigation technology from the u-blox F10 allows the module to choose the best signals from both bands to achieve a significantly better position accuracy in challenging urban environments than with the L1 band alone.
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+What's different from other u-blox modules is that the NEO-F10N module only supports one serial UART communication port. We included a CH340 USB-to-serial converter to connect the board to a computer's USB port easily. For users connecting the board's serial UART pins to a microcontroller or radio, you will need to cut the USB-TX and USB-RX jumpers to avoid bus contention. Pins for power, serial, pulse per second, and control pins are broken out to 0.1"-spaced pins on the board's edge. We have also conveniently included a 1x6 header should you connect a BlueSMiRF v2 to transmit data wirelessly!
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+The breakout is also has an on-board rechargeable battery that provides power to the RTC on the NEO-F10N. This reduces the time-to-first fix from a cold start (~28s) to a hot start (2s). The battery will maintain RTC and GNSS orbit data without being connected to power for plenty of time. We have included an SMA connector for a secure connection.
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+U-blox-based GPS products are configurable using the popular but dense Windows program u-center. Plenty of different functions can be configured on the NEO-F10N: baud rates, update rates, spoofing detection, external interrupts, SBAS, etc. To get started, we've included a few basic UART examples with our SparkFun Arduino Library.
 
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