diff options
Diffstat (limited to 'sds011.lua')
| -rw-r--r-- | sds011.lua | 21 |
1 files changed, 15 insertions, 6 deletions
@@ -30,13 +30,22 @@ function sds011.finish_cmd(cmd) return cmd end +function sds011.query() + local cmd = string.char(c_head, c_id, c_query) + cmd = cmd .. string.char(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) + return sds011.finish_cmd(cmd) +end + function sds011.set_report_mode(active) - local cmd = string.char(c_head, c_id, c_report_mode, c_write) - if active then - cmd = cmd .. string.char(c_active) - else - cmd = cmd .. string.char(c_passive) + local op = c_write + local cmd = c_passive + if active == nil then + op = c_read + active = false + elseif active then + cmd = c_active end + local cmd = string.char(c_head, c_id, c_report_mode, op, cmd) cmd = cmd .. string.char(0, 0, 0, 0, 0, 0, 0, 0, 0, 0) return sds011.finish_cmd(cmd) end @@ -82,7 +91,7 @@ function sds011.parse_frame(data) sds011.pm10f = pm10 % 10 return true end - if command == 0xc5 then + if command == 0xc5 and pm25l == 0x08 then sds011.work_period = pm10l return true end |