OG Hardware Pebble and specs

Info found from https://www.reddit.com/r/pebble/comments/88xy07/is_there_a_schematic_for_the_pebble_time/

Pebble Classic Micron N25Q032A11ESE40F 32 Mb serial flash

STMicroelectronics STM32F205RE high-performance ARM Cortex-M3 MCU, with a maximum speed of 120 MHz

STMicroelectronics LIS3DH 3-axis accelerometer

Texas Instruments BQ24040 1A Battery Charger

Xtrinsic MAG3110 3D Digital Magnetometer

Panasonic pan1316 RF module (powered by a Texas Instruments CC2564 for BLE)

Lipo 3.7 Volts and 130 mAh

Source: https://www.ifixit.com/Teardown/Pebble+Teardown/13319

Pebble Time Some RGB sharp memory display

http://ocs.arrow.com/shared-assets/pdf/jdi-mip-docs/1.34/preliminary-LPM013M091A-specification.pdf (Used in the round version)

http://ocs.arrow.com/shared-assets/pdf/jdi-mip-docs/1.28-backlight/specsheet-1.28-backlight.pdf

ST Micro STM32F439ZG 180 MHz ARM Cortex-M4-based MCU

Spansion S29VS128R 128 Mb, 65 nm MirrorBit Flash

Texas Instruments CC2564B Bluetooth and Dual-Mode Controller

Ambient light sensor

Lattice LP1K Field Programmable Gate Array

+14690B EWXS 9.504 AB Power Management IC; likely Maxim Integrated's MAX14690EWX

Linear Tech LT3009 Linear Regulator (Pebble tells us that the LT3009 is included for supplying power to the upcoming Smartstraps)

Bosch Sensortec BMI160 (6-axis IMU with acceleroemeter and gyroscope)

Freescale Xtrinsic MAG3110 3D Digital Magnetometer

Texas Instruments DRV2603 Motor Driver

Lipo 150 mAh, 0.57 Wh, 3.8 V

Source: https://www.ifixit.com/Teardown/Pebble+Time+Teardown/42382

Current mcu in pebble Seems like there are multiple different stm mcu type each generation, all of them are ARM M3 cores

Pebble classic MCU : http://www.st.com/resource/en/datasheet/stm32f205rb.pdf

Pebble Time MCU: http://www.st.com/resource/en/datasheet/stm32f411re.pdf

Pebble 2 MCU: http://www.st.com/resource/en/datasheet/stm32f765bg.pdf