Schematics and datasheets
Schematics and Board Data
Pinecil V1 mainboard schematic
V1 was only sold until July 2022, and then discontinued for newer V2 model
Pinecil mainboard schematic ver 1.0 20201120, this is production version schematic
Pinecil mainboard ver 1.0 PCB Component Placement Top PDF file
Pinecil mainboard ver 1.0 PCB Component Placement Bottom PDF file
Pinecil mainboard ver 1.0 PCB Component Placement Top Drawing file
Pinecil mainboard ver 1.0 PCB Component Placement Bottom Drawing file
Datasheets for Components
Pinecil V2 datasheets
Power MOSFET Switch: HSM4313, location U13 (Replacement HSM4313).
LDO Regulator: LP 3986-33, Ultra-low noise, location U5 (Replacement LP 3986-33).
Buck Converter: TP6841S6 40V, Step-Down, location U8, (Replacement TP6841S6-A).
USB-C PD Controller: FUSB302MPX, location U1, (Replacement FUSB302MPX)
Acceleration/Gyroscope: SC7A20 sensor, Silan, location U9 (replacement unknown).
NTC Temperature Sensor: NTCG163JF103FTDS, location NTC1 (Replacement NTC here). Note that U10 is empty if NTC type thermistor is used.
Optional Hall Effect Sensor: Si7210-B-00-IV® by Silicon Labs, location U14. This is a user add-on and does not come installed on the pcb.
(Replacement Si7210-B-00-IV, also at Digikey and Mouser)
Operational Amplifier SGM8557-1AXN5G, SGMicro, Low Noise OP Amp Datasheet, location U11 (replacement unknown).
Display Screen OLED QUG-9616TSWCG02 datasheet (Replacement QUG-9616TSWCG02 OLED Display).
MCU: Bouffalo Labs, BL-706_QFN48, RISC-V + 2.4 GHz RF SoC
BL706 Analysis, by Lupyuen, includes datasheet, location U15.
SMD Resonator for Bluetooth BLE, 32MHZ/12PF-10PPM, SMD2016-4P, location UX1 (Replacement SMD Resonator).
USB-C port:
possible part, has not been verified: Replacement USB-C port
Pinecil V1 datasheets
Buck converter: RT7272B 3A Datasheet, Ricktek, Step-Down converter, location U8
LDO Regulator: LP 3986-33, location U5, (Replacement here).
MOSFET Switch: CJQ7328 8A datasheet, Chang Jiang.
Hint: people have replaced V1 mosfet using the better rated one from the newer V2 datasheets (HSM4313 has same footprint and higher rating), see V2 section for MOSFET.
Acceleration Bosch BMA223 Sensor Datasheet
Temperature Sensor: Analog Device TMP36 Datasheet, location U10, (possible replacement here).
Optional Hall Effect Sensor: Si7210-B-00-IV® by Silicon Labs, location U14. This is a user add-on and does not come installed on the pcb.
(One place to buy it, also at Digikey and Mouser)
OLED Display screen: QUG 9616TSWCG02 Display Module Datasheet
USB Type-C PD Controller: FUSB302 USB PD Datasheet
OP Amp information: SGMicro SGM8557-1 Low Noise OP Amp Datasheet (U11)
Capacitors: possible replacement part for C5, 1uF/50V
USB-C port: possible part, has not been verified: Replacement
GigaDevice RISC-V SoC data:
Breakout Board Datasheet: LP6498B6F 1.2A Switching Power Regulator
