4 layers80 × 70 mm
Cross band handy walkie talkie ES8388
immortal-sniper1/cross_band_handy_walkie_talkie
cross band handy walkie talkie. This HT would include 2 SA818s, one for 70cm and one for 2m and could be used for satellite work.
205 parts6MIT
4 layers81.6 × 102.5 mm
LoRa Phone
maelastiques/PTCR-V5-P4- Size
- 81.6 × 102.5 mm
- Copper layers
- 4
- Thickness
- 1.59 mm
- Parts
- 204
- Nets
- 249
- Pads
- 993
- Tracks, vias
- 3,701, 779
- Pours
- 31
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 16 Jun 2026
- Updated
- 9 Jul 2026
Overview
LoRa Phone is an open-source printed circuit board by maelastiques, from the maelastiques/PTCR-V5-P4 repository on GitHub. It is a 4-layer board of 81.6 × 102.5 mm with 204 parts on 249 nets, routed with 3,701 tracks and 779 vias.
It is built around the AD8318ACPZ-REEL7, E22-170M30S and E22-900M30S, with the SA818S-U, SKY13373-460LF and L76K among its other parts. Its parts include 66 capacitors, 66 resistors, 30 ICs, 7 diodes and 6 connectors. It belongs with the radio and wireless boards and the ESP32 boards of this library.
Main components
12
AD8318ACPZ-REEL7
LFCSP-16(4x4)-40℃~+85℃ -60dBm~0dBm 1MHz~8GHz 4.5V~5.5V 68mA ±1dB 对数检测、温度补偿 LFCSP-16(4x4) RF Detectors ROHSAnalog DevicesRF DetectorsE22-170M30S
SMD,38.5x24mmSMD,38.5x24mm LoRa Modules ROHSChengdu Ebyte Elec TechLoRa Modules
E22-900M30S
SMD,38.5x24mm-151dBm 12km 14mA 2.5V~5.5V 31dBm 650mA Continuous frequency coverage IPEX interface LoRa SPI SMD,38.5x24mm LoRa Modules ROHSChengdu Ebyte Elec TechLoRa Modules
SA818S-U
SMD,19x35.6mmSleep wake-up function SMD,19x35.6mm RF Modules ROHSG-NiceRFModules
SKY13373-460LF
QFN-12-EP(2x2)-40℃~+85℃ 0.45dB 100MHz~6GHz 2.5V~4.8V 30dB 39dBm Integrated control logic triple-pole/single-throw QFN-12-EP(2x2) RF Switches ROHSSkyworks SolutionsRF SwitchesL76K
LCC-18LCC-18 GNSS Modules ROHSQuectelGNSS Modules
BMP390
LGA-10(2x2)-40℃~+85℃ 0.6pa/K 1.5uA 1.65V~3.6V 30Kpa~1.25bar 3pa 50pa I2C、SPI Integrated ADC and digital interface、Standby mode、On-chip temperature output Yes LGA-10(2x2) Pressure Sensors ROHSBosch SensortecPressure Sensors
DRV2605LDGS
VSSOP-10-0.5mm-40℃~+85℃ 1 2V~5.2V 500uA I2C Yes VSSOP-10-0.5mm Brushed DC Motor Drivers ROHSTexas InstrumentsBrushed DC Motor Drivers
BQ24075RGT
QFN-16-EP(3x3)-40℃~+125℃ 1.5A 4.2V 4.35V~6.4V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
MAX17048G+T10
DFN-8-EP(2x2)-40℃~+85℃ 1 2.5V~4.5V 3uA I2C Lithium Battery Not supported Not supported DFN-8-EP(2x2) Battery Management ROHSMaxim Integrated (Analog Devices)Battery Management
MAX16150AUT+T
SOT-6-40℃~+125℃ 1 1.3V~5.5V 20nA Active Low Manual reset input Push-pull SOT-6 Supervisor and Reset ICs ROHSMaxim Integrated (Analog Devices)Supervisor And Reset ICs
RV-3028-C7
DFN-8(1.5x3.2)DFN-8(1.5x3.2) Real Time Clocks ROHSMicro CrystalReal Time Clocks
Parts
204| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 10K | Resistor_SMD:R_0402_1005Metric | R70, R74, R109, R116, R117, R118, R119, R120, R121, R122, R123, R124, R129, R132, R139, R140 +8 |
| 22 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3, C24, C29, C121, C122, C123, C124, C125, C128, C130, C131, C132, C133, C134, C135, C137 +6 |
| 9 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C16, C31, C37, C38, C94, C105, C107, C110, C114 |
| 8 | 1uF | Capacitor_SMD:C_0402_1005Metric | C26, C27, C30, C93, C98, C116, C117, C118 |
| 6 | 100pF | Capacitor_SMD:C_0402_1005Metric | C99, C100, C104, C106, C109, C113 |
| 6 | 1nF | Capacitor_SMD:C_0402_1005Metric | C101, C102, C103, C108, C111, C112 |
| 6 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C39, C87, C97, C115, C119, C120 |
| 6 | LED_ARBG | LED_SMD:LED_SK6812_EC15_1.5x1.5mm | D1, D2, D3, D4, D5, D6 |
| 5 | 10uF | Capacitor_SMD:C_0603_1608Metric | C23, C25, C28, C40, C96 |
| 5 | 1K | Resistor_SMD:R_0402_1005Metric | R107, R108, R114, R115, R135 |
| 4 | 5K | Resistor_SMD:R_0402_1005Metric | R102, R103, R106, R134 |
| 4 | 600R @100MHz 500mA | Inductor_SMD:L_0402_1005Metric | FB2, FB3, FB5, FB6 |
| 4 | 96.2R | Resistor_SMD:R_0402_1005Metric | R83, R84, R86, R87 |
| 3 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 3 | INA219BxDCN | Package_TO_SOT_SMD:SOT-23-8 | U14, U15, U16 |
| 3 | MountingHole_2.2mm_M2_DIN965_Pad_TopBottom | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad_TopBottom | MH0, MH0, MH0 |
| 2 | +3V3_RF | TestPoint:TestPoint_Pad_D1.0mm | TP6, TP7 |
| 2 | +5V_RF | TestPoint:TestPoint_Pad_D1.0mm | TP5, TP8 |
| 2 | 1.13K | Resistor_SMD:R_0402_1005Metric | R110, R113 |
| 2 | 1.18K | Resistor_SMD:R_0402_1005Metric | R111, R112 |
| 2 | 100K | Resistor_SMD:R_0402_1005Metric | R77, R133 |
| 2 | 100R | Resistor_SMD:R_0402_1005Metric | R81, R82 |
| 2 | 10K 0.1% | Resistor_SMD:R_0402_1005Metric | R136, R138 |
| 2 | 16K | Resistor_SMD:R_0402_1005Metric | R100, R101 |
| 2 | 2.2uF | Capacitor_SMD:C_0402_1005Metric | C126, C127 |
| 2 | 3.3K | Resistor_SMD:R_0402_1005Metric | R91, R141 |
| 2 | 499R | Resistor_SMD:R_0402_1005Metric | R90, R94 |
| 2 | 5.6K 0.1% | Resistor_SMD:R_0402_1005Metric | R97, R137 |
| 2 | 51.1K | Resistor_SMD:R_0402_1005Metric | R104, R128 |
| 2 | 52.3R | Resistor_SMD:R_0402_1005Metric | R89, R93 |
| 2 | 71.5R | Resistor_SMD:R_0402_1005Metric | R85, R88 |
| 2 | AD8318ACPZ-REEL7 | PTCR:QFN65P400X400X100-17N | IC2, IC3 |
| 2 | BQ24075RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U7, U9 |
| 2 | Board_1 | Connector_FFC-FPC:Molex_502244-3330_1x33-1MP_P0.5mm_Horizontal | J5, J6 |
| 2 | MAX17048G+T10 | PTCR:SON50P200X200X80-9N-D | IC5, IC6 |
| 2 | MCP23017x-x-ML | Package_DFN_QFN:QFN-28-1EP_6x6mm_P0.65mm_EP4.25x4.25mm | U3, U8 |
| 1 | +3V3_GNSS | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
| 1 | +3V3_NSY | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | 0.01R | Resistor_SMD:R_0402_1005Metric | R131 |
| 1 | 0.02R | Resistor_SMD:R_0402_1005Metric | R127 |
| 1 | 0.05R | Resistor_SMD:R_0402_1005Metric | R130 |
| 1 | 10.2K | Resistor_SMD:R_0402_1005Metric | R105 |
| 1 | 2.2K | Resistor_SMD:R_0402_1005Metric | R75 |
| 1 | 22uF | Capacitor_SMD:C_0402_1005Metric | C136 |
| 1 | 47uF | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 600R @100MHz 1.5A | Inductor_SMD:L_0603_1608Metric | FB4 |
| 1 | 600R @100MHz 2A | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | 600R @100MHz 4A | Inductor_SMD:L_0402_1005Metric | FB7 |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | BMP390 | PTCR:10LGA_2X2X0p75_BOS | U4 |
| 1 | D | Diode_SMD:D_SOD-523 | D8 |
| 1 | DRV2605LDGS | Package_SO:TSSOP-10_3x3mm_P0.5mm | U10 |
| 1 | E22-170M30S | PTCR:XCVR_E22-900M30S | U24 |
| 1 | E22-900M30S | PTCR:XCVR_E22-900M30S | U23 |
| 1 | ESP32-S3-WROOM-2 | RF_Module:ESP32-S3-WROOM-2 | U1 |
| 1 | IS31FL3218-QF | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm | U5 |
| 1 | Interface | Connector_PinHeader_2.54mm:PinHeader_2x20_P2.54mm_Vertical | J1 |
| 1 | JST_MAIN | Connector_JST:JST_EH_S2B-EH_1x02_P2.50mm_Horizontal | J4 |
| 1 | Joystick | Connector_FFC-FPC:Amphenol_F32Q-1A7x1-11004_1x04-1MP_P0.5mm_Horizontal | J2 |
| 1 | L76K | PTCR:JST_SM08B-SRSS-TB_LF__SN_ | J3 |
| 1 | LSM6DSOXTR | PTCR:LGA-14L_STM | U6 |
| 1 | MAIN | Connector_JST:JST_EH_S2B-EH_1x02_P2.50mm_Horizontal | BT1 |
| 1 | MAX16150AUT+T | PTCR:SOT95P280X145-6N | IC8 |
| 1 | MCP4725xxx-xCH | Package_TO_SOT_SMD:SOT-23-6 | U17 |
| 1 | Motor_DC | Connector_Molex:Molex_PicoBlade_53048-0210_1x02_P1.25mm_Horizontal | M1 |
| 1 | POWER | Button_Switch_SMD:SW_SPST_PTS810 | SW1 |
| 1 | RIC11-31S10K2-GSMT | PTCR:RIC1131S10K2GSMT | U19 |
| 1 | RV-3028-C7 | Package_SON:MicroCrystal_C7_SON-8_1.5x3.2mm_P0.9mm | U12 |
| 1 | RXD_LC76G | TestPoint:TestPoint_Pad_1.5x1.5mm | TP3 |
| 1 | SA818S | PTCR:XCVR_SA818S | U13 |
| 1 | SECOND | Connector_JST:JST_EH_S2B-EH_1x02_P2.50mm_Horizontal | BT2 |
| 1 | SKY13373-460LF | PTCR:QFN50P200X200X60-13N-D | IC1 |
| 1 | SMA | Connector_Coaxial:SMA_Amphenol_132289_EdgeMount | AE6 |
| 1 | SN74LVC1G74RSE2 | PTCR:SN74LVC1G74RSE2 | IC9 |
| 1 | TCA9543ADR | PTCR:SOIC127P600X175-14N | IC7 |
| 1 | TCD-10-23BDX+ | PTCR:TCD-10-23BDX+ | U2 |
| 1 | TLV3501AIDBV | Package_TO_SOT_SMD:SOT-23-6 | U18 |
| 1 | TPS2121RUXT | PTCR:TPS2121RUXT | IC4 |
| 1 | TPS22965NTDSGRQ1 | PTCR:SON50P200X200X80-9N | IC10 |
| 1 | TXD_LC76G | TestPoint:TestPoint_Pad_1.5x1.5mm | TP1 |
The 202 most common of 204 parts.
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Questions
How big is the LoRa Phone PCB?
It measures 81.6 × 102.5 mm and has 4 copper layers, 1.59 mm thick.
What parts does the LoRa Phone use?
204 parts, built around the AD8318ACPZ-REEL7, E22-170M30S, E22-900M30S and SA818S-U. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the LoRa Phone KiCad files?
From the maelastiques/PTCR-V5-P4 repository on GitHub, at the commit this page was made from: the board is LoRa-Phone.kicad_pcb and its schematic LoRa-Phone.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LoRa Phone design in my own project?
Its repository states no licence, so its author keeps all rights: ask maelastiques before reusing the design.