5 4 3 2 1 Revision History Rev 1.0 D Rev 2.0 C 9/8/2015 D 1. Initial design. 9/29/2015 1. Remove soldermask to expose battery terminal 2. Change light sensor to Si1133 3. Change magnetic sensor to SL353HT 4. Change I2C interrupt pullups to 5k 5. Add manufacturing test points 6. Add a mounting hole 7. Silk screen on buttons should be "BTN0 // (~PA3)" 7. Make "hacker" pads larger 8. Add device descriptions to silk screen 9. Remove bumpons and bumpon silk 10. Replace "U2" silk with "RH/T" (for all sensors) 11. Add board name 12. Find nicer buttons (same footprint) 13. Add debounce to switches C Rev 2.1-2.3 BOM optimization 1. New reverse battery FET (lower Ron) 2. Hall Effect sensor changed to SiLabs part B B A A 400 W Cesar Chavez Austin, TX 78701 Title Size B Date: 5 4 3 2 ThunderBoard BGM111 Sensor Module Document Number IST-A0057 W ednesday, March 16, 2016 Rev 2.3 . Sheet 1 1 of 4 5 4 3 2 1 User IO Blue Gecko Module D D U1 LED 0 VMCU 9 10 pa5 11 pb11_hall_pwr PF4 PA3 PF3 PA4 PF2 PA5 PF1 PB11 GND:12 PF0 13 12 PA2 PC11 pa4_pti_data PF5 PC10 8 PA1 GND:20 31 30 BLUE Silk = LED-B 29 28 pf7_btn1 27 pf6_led1 26 25 24 R26 287 pa2_led0 pf5_light_int pf2_swo 22 pf1_swdio 21 D1 R39 10K pf0_swclk R19 4.99K SCL R20 4.99K TP5 SDA pc10_sda S0 SW PUSHBUTTON Silk = SW -0 C54 0.1uF J3 VMCU 2 4 6 8 10 pa1_vcom_rx pf2_swo pf0_swclk pa4_pti_data pc9_flash_cs pc7_flash_miso Header 2x5 .05in pd13 TP16 PD13 pd14 TP17 PD14 pd15 TP18 PD15 pa2_led0 TP21 PA2-LEDB pa3_btn0 TP22 PA3-SW 0 pa5 TP19 PA5 pf7_btn1 TP23 PF7-SW 1 pf6_led1 TP24 PF6-LEDG VMCU C55 0.1uF VMCU TP25 PW R TP27 PW R TP26 GND TP28 GND B U6 1 2 3 4 VMCU CS VCC SO HOLD WP CLK GND SI 8 7 6 5 A pc8_flash_clk pc6_flash_mosi 400 W Cesar Chavez Austin, TX 78701 8Mb Title Size B Date: 5 S1 SW PUSHBUTTON Silk = SW -1 pf6_led1 External Flash Mini Simplicity Header GND VCOM_RX SWO SWCLK PTI_DATA pf7_btn1 R41 120 pc11_scl VAEM RST VCOM_TX SWDIO PTI_FRAME R48 10K Silk = LED-G pa3_btn0 User accesible pads on top and bottom B 1 3 5 7 9 R40 10K GREEN R47 10K 20 TP4 bgm_reset pa0_vcom_tx pf1_swdio pb13_pti_sync VMCU C pc11_scl pc10_sda pc9_flash_cs pc8_flash_clk pc7_flash_miso pb13_pti_sync pc6_flash_mosi VMCU pf3_hall 23 I2C bus pullups Vext Switch 1 pf4_accel_int VMCU A VMCU D0 bgm_reset LED 1 19 7 pa3_btn0 PF6 BGM111A256V1 PC9 pa2_led0 PA0 18 6 PF7 PC8 5 pa1_vcom_rx PD15 17 pa0_vcom_tx VDD PC7 4 PD14 16 pd15 RESET PC6 3 GND:31 PD13 15 C pd14 GND:1 PB13 2 14 1 pd13 VMCU Switch 0 4 3 2 BGM111 and user IO Document Number IST-A0057 Tuesday, January 12, 2016 Rev 2.3 . Sheet 1 2 of 4 5 4 3 2 1 Si7021 precision temperature + humidity sensor Inertial Sensor (6-axis) VMCU D D 5 VMCU VDD NC NC GND C26 0.1uF 3 4 note 1 pc11_scl pc10_sda 1 pc11_scl 2 3 4 TP29 B SCL Si1133-AA00 Rhigh GND VDD Rhigh INT AD R45 10K C50 0.1uF 20 21 19 RESV RESV AUX_DA 23 22 NCS NC NC VDD 16 15 C VMCU 14 13 INT 4.99K NC 17 12 U3 NC 18 C48 0.1uF pf4_accel_int 9 TP14 8 PF4 7 C49 0.01uF C47 0.1uF 6 NC pf5_light_int SDA NC note 5 10 R33 4.99K R44 6 NC NC FSYNC 5 GND NC REGOUT VMCU VMCU U5 MPU-6500 NC 11 4 1133 ambient light and UV light sensor NC 10 3 C NC SDO/AD0 2 7 1 SDA/SDI 24 Connect EPAD to GND 9 2 pc10_sda SCL/SCLK pc10_sda SCL SDA VDDIO 6 1 AUX_CL note 3 pc11_scl 8 U2 Si7021 B 5 PF5 note 4 Hall Effect Sensor pb11_hall_pwr U4 C51 0.1uF GND pf3_hall 1 VDD 2 OUT 3 Hall Effect TP30 PF3 A A 400 W Cesar Chavez Austin, TX 78701 note note note note 1: 3: 4: 5: do not tie pins 3,4 to GND rh/t i2c address = 0x40 accel i2c slave address = 0b1101000 when AD0 = 0. light sensor i2c slave address = 0x60 Title Size B Date: 5 4 3 2 Sensors Document Number IST-A0057 Tuesday, January 12, 2016 Rev 2.3 . Sheet 1 3 of 4 5 4 3 2 1 Power D D Silk screen for switch: "Vbat" or "Vext" Coin-cell battery holder Vbat Vbat VMCU Vbat BH1 POS NEG POS 1 3 TP3 Vbat Reverse battery protection 2 C38 100uF TP15 GND Q3 AO3434A Vext VMCU 1 2 3 + SW _SLIDE_2POS SW 3 20mm COIN R46 0 NI neg terminal = exposed copper pad C C Plastic battery isolator CR2032 coin cell battery BH3 BT1 Mylar 3.0V B B A A Title Battery Size B Date: 5 4 3 2 Document Number IST-A0057 Tuesday, January 12, 2016 Rev 2.3 Sheet 1 4 of 4