Dragonfly.v02

by PeskyProducts.
Top
Bottom

4 layer board of 0.71x1.41 inches (17.93x35.71 mm).
Shared on February 2nd, 2016 01:47.

Second iteration of STM32L4 breakout. Replaced TLV70733 with NCP161 3.3 V LDO with 500 mA current and 18 microA Iq, replace I2C EEPROM with 32 Mbit SPI NOR flash on fast QSPI port, added PAS3225 3.3V 0.11 F supercap on VBAT for RTC backup, put SMD pads on back for auxiliary serial port, reversed battery terminal polarity so LiPo JST connector can be soldered to the board, and added power-on led disable via back solder jumper for low power applications.

Order board. Download. Permalink. Embed order link.

Copy this HTML into your page to embed a link to order this shared project