# ATmega328P 0-10V Temp Humidity Controller ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** cansumemis - **Created:** 4/18/2026 - **Last Updated:** 4/19/2026 - **Visibility:** Public ## Key Components ### D1 — [24V Unidirectional TVS Diode](https://www.flux.ai/corynrobinson/24v-unidirectional-tvs-diode~im.md) - Part Type: Diode - Datasheet URL: https://octopart.com/datasheet/smaj24a-tr-stmicroelectronics-350001 - Role Details: 24 V TVS clamp across input - Role: Input Protection - Package or Case Code: D_SMA - Manufacturer Name: STMicroelectronics NV - Breakdown Voltage: 26.7V - Manufacturer Part Number: SMAJ24A-TR - Leakage Current: 200nA - Package: SMA **Pins:** - A - K ### D2 — [SS34](https://www.flux.ai/lcsc/ss34~6q67.md) - Manufacturer Part Number: SS34 - JLCPCB Part Class: Extended Part - Diode Type: Schottky - Role Details: Catch diode for LM5010 buck stage - Role: Buck Diode - Manufacturer Name: UMW(友台半导体) - Part Type: Schottky Barrier Diodes (SBD) - Forward Voltage: 0.3V to 0.45V - Reverse Voltage: 40V - LCSC Part Number: C2758511 - Package or Case Code: SMB_L4.3-W3.6-LS5.4-RD - Package: SMA **Pins:** - A [pin 2] - K [pin 1] ### IC1 — [ATMEGA328P-AU](https://www.flux.ai/jecstronic/atmega328p-au~vwn.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package: TQFP-32 - Manufacturer Part Number: ATMEGA328P-AU - Manufacturer Name: Microchip Technology Inc. - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/ATmega48A-PA-88A-PA-168A-PA-328-P-DS-DS40002061B.pdf - Role: MCU - Role Details: Reads SHT30 via I2C and generates PWM for analog output - Part Type: Integrated Circuit **Pins:** - (PCINT0/CLKO/ICP1)_PB0 [pin 12] - (PCINT1/OC1A)_PB1 [pin 13] - (PCINT19/OC2B/INT1)_PD3 [pin 1] - (PCINT2/SS/OC1B)_PB2 [pin 14] - (PCINT20/XCK/T0)_PD4 [pin 2] - (PCINT21/OC0B/T1)_PD5 [pin 9] - (PCINT22/OC0A/AIN0)_PD6 [pin 10] - (PCINT23/AIN1)_PD7 [pin 11] - (PCINT3/OC2A/MOSI)_PB3 [pin 15] - (PCINT4/MISO)_PB4 [pin 16] - (PCINT6/XTAL1/TOSC1)_PB6 [pin 7] - (PCINT7/XTAL2/TOSC2)_PB7 [pin 8] - ADC6 [pin 19] - ADC7 [pin 22] - AREF [pin 20] - AVCC [pin 18] - GND_1 [pin 3] - GND_2 [pin 5] - GND_3 [pin 21] - PB5_(SCK/PCINT5) [pin 17] - PC0_(ADC0/PCINT8) [pin 23] - PC1_(ADC1/PCINT9) [pin 24] - PC2_(ADC2/PCINT10) [pin 25] - PC3_(ADC3/PCINT11) [pin 26] - PC4_(ADC4/SDA/PCINT12) [pin 27] - PC5_(ADC5/SCL/PCINT13) [pin 28] - PC6_(~RESET~/PCINT14) [pin 29] - PD0_(RXD/PCINT16) [pin 30] - PD1_(TXD/PCINT17) [pin 31] - PD2_(INT0/PCINT18) [pin 32] - VCC_1 [pin 4] - VCC_2 [pin 6] ### J2 — [AVR-ISP-6](https://www.flux.ai/vasy_skral/avr-isp-6~ry.md) - Role Details: 2x3 keyed AVR ISP header - Role: Programming Header - Part Type: Connector - Manufacturer Part Number: 61200621621 - Manufacturer Name: Würth Elektronik - Exclude from BOM: false - Datasheet URL: https://www.we-online.com/catalog/datasheet/61200621621.pdf - Package: THT_2.54mm **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### Q1 — [DMP3013SFV](https://www.flux.ai/kicad-part-library/dmp3013sfv~5bo.md) - Package or Case Code: Diodes_PowerDI3333-8 - Manufacturer Part Number: DMP3013SFV - Package: SOT-23-5 - Role: Reverse Polarity Protection - Role Details: High-side P-channel MOSFET reverse polarity protector - Datasheet URL: https://www.diodes.com/assets/Datasheets/DMP3013SFV.pdf **Pins:** - D [pin 5] - G [pin 4] - S [pin 1] - S [pin 3] - S [pin 2] ### U1 — [282837-2](https://www.flux.ai/lcsc/282837-2~7jff.md) - Role: Power Input - Package: THT - Manufacturer Part Number: 282837-2 - Role Details: 24 V DC input connector - Package or Case Code: CONN-TH_2P-P5.08_282837-2 - JLCPCB Part Class: Extended Part - Datasheet URL: https://www.farnell.com/datasheets/3257301.pdf - LCSC Part Number: C592976 - Part Type: Connector - Manufacturer Name: TE Connectivity(泰科电子) **Pins:** - 1 [pin 1] - 2 [pin 2] ### U2 — [LM5010AMH](https://www.flux.ai/yevha/lm5010amh~zn.md) - Part Type: LM5010AMH NOPB - Manufacturer Part Number: LM5010AMH_NOPB - Package or Case Code: SOP65P640X110-15N - Package: HTSSOP - Role Details: 24 V to 5 V step-down regulator - Role: Buck Regulator - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm5010a.pdf?ts=1735849047987&ref_url=https%253A%252F%252Fwww.snapeda.com%252F - Manufacturer Name: Texas Instruments **Pins:** - BST [pin 3] - EPAD [pin 15] - FB [pin 9] - ISEN [pin 4] - NC [pin 1] - NC [pin 8] - NC [pin 7] - NC [pin 14] - RON/SD [pin 11] - RTN [pin 6] - SGND [pin 5] - SS [pin 10] - SW [pin 2] - VCC [pin 12] - VIN [pin 13] ### U3 — [SHT30-DIS-B2.5KS](https://www.flux.ai/adrian95/sht30-dis-b2p5ks~iz4.md) - Part Type: Sensor - Manufacturer Name: Sensirion AG - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1067/HT_DS_SHT3x_DIS.pdf - Package: DFN - Manufacturer Part Number: SHT30-DIS-B2.5KS - Role: Humidity Sensor - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: I2C humidity and temperature measurement **Pins:** - ~RESET [pin 6] - ADDR [pin 2] - ALERT [pin 3] - EXP [pin 9] - R [pin 7] - SCL [pin 4] - SDA [pin 1] - VDD [pin 5] - VSS [pin 8] ### U4 — [LM7332MA-NOPB](https://www.flux.ai/jecstronic/lm7332ma-nopb~6vv.md) - Part Type: Operational Amplifier (OP-AMP) - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Flm7332 - Manufacturer Part Number: LM7332MA/NOPB - Role Details: Buffered filter and non-inverting gain stage for 0-10 V output - Package: SOIC-8 - Manufacturer Name: Texas Instruments - Role: Analog Output Stage **Pins:** - IN -A [pin 2] - IN -B [pin 6] - IN +A [pin 3] - IN +B [pin 5] - OUT A [pin 1] - OUT B [pin 7] - V- [pin 4] - V+ [pin 8] ### U5 — [KF128-5.08-2P-AA](https://www.flux.ai/lcsc/kf128-5p08-2p-aa~0pbi.md) - Part Type: Screw terminal - LCSC Part Number: C474952 - Connector Rows: 1 - Package or Case Code: CONN-TH_P5.08_KF128-5.08-2P - Connector Type: Screw terminal - Package: THT - Connector Pitch: 5.08mm - Role: Analog Output Connector - Operating Temperature: -40℃~+105℃ - Manufacturer Name: KEFA(科发) - Manufacturer Part Number: KF128-5.08-2P-AA - Connector Positions: 2 - Connector Gender: Female - Product Info Url: https://lcsc.com/product-detail/New-Quadratic-Unclassified-Data_Cixi-Kefa-Elec-KF128-5-08-2P_C474952.html - JLCPCB Part Class: Extended Part - Role Details: 0-10 V analog output and return connector - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2408211511_Cixi-Kefa-Elec-KF128-5-08-2P-AA_C474952.pdf - Current Rating: 24A **Pins:** - 1 [pin 1] - 2 [pin 2] ### U6 — [TPS78233DDC](https://www.flux.ai/kicad-part-library/tps78233ddc~48w.md) - Role: LDO - Role Details: 5 V to 3.3 V regulator for sensor rail - Package: SOT-23-5 - Manufacturer Name: Texas Instruments Inc. - Manufacturer Part Number: TPS78233DDC - Datasheet URL: http://www.ti.com/lit/gpn/tps782 - Package or Case Code: SOT-23-5 **Pins:** - EN [pin 3] - GND [pin 4] - GND [pin 2] - IN [pin 1] - OUT [pin 5] ### Y1 — [ABM7-16.000MHZ-D2Y-T](https://www.flux.ai/adrian95/abm7-16000mhz-d2y-t~mq5.md) - Part Type: Oscillator - Frequency: 16MHz - Manufacturer Name: Abracon LLC - Package: SMD - Role Details: 16 MHz MCU crystal - Manufacturer Part Number: ABM7-16.000MHZ-D2Y-T - Role: Clock - Datasheet URL: https://abracon.com/Resonators/abm7.pdf **Pins:** - P1 - P2 *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/cansumemis/atmega328p-0-10v-temp-humidity-controller~nz](https://www.flux.ai/cansumemis/atmega328p-0-10v-temp-humidity-controller~nz).* --- *Generated from [https://www.flux.ai/cansumemis/atmega328p-0-10v-temp-humidity-controller~nz](https://www.flux.ai/cansumemis/atmega328p-0-10v-temp-humidity-controller~nz)*