Product overview
The JHEMCU SPP-SBUS PPM PWM signal conversion module converts RC receiver signals between three formats. An SBUS input produces PWM and PPM outputs simultaneously, while a PPM input produces PWM and SBUS outputs simultaneously. PWM signals entering any one or more of channels 1–8 produce PPM and SBUS outputs. The module supports eight input/output channels and automatically recognizes the incoming signal without manual switching. Supported inputs include PPM (CPPM), common receiver PWM and SBUS, including Futaba-R7008SB series and FrSky signals.
A 32-bit single-chip microcomputer handles signal acquisition, processing and conversion. The module measures 21*21MM, weighs 4.1 grams and operates from a 3.3-20V input, with a current of 15MA. Green PPM, blue SBUS and red PWM indicators show signal status: the input indicator stays illuminated and output indicators flash; all three illuminate when no signal is present. Supplied equipment comprises one SPP conversion module and four pin headers: two 8P*2.54MM*3 and two 6P*2.54MM headers, including one straight header of each size. The pins require user soldering.



