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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)
, e" {3 P4 y: S; J' x- #include <ESP8266HTTPClient.h>
x" O9 @# T% Q6 U4 q; V - #include <ESP8266WiFi.h>
+ ]" x3 H; ^" `5 P - #include <ESP8266WiFiMulti.h>
& N" |2 o9 ^9 ]) y: N; g5 H c/ ` - #include <ESP8266WebServer.h>* ^9 D; x( p' k# D
- #include <arduino.h>
0 D$ N6 i' a* u" Z - ESP8266WiFiMulti WiFiMulti;( M% ]* K' L+ ^, B
- ESP8266WebServer server(80);; l) ]. G& W, k z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, E% f& O8 D# W5 l% h - ADC_MODE(ADC_VCC);4 o( Q0 ~( G7 G9 d
- void setup() {
, \) d: u1 t; r Q- v - Serial.begin(115200);. ^' t% e* ?# b- U6 i# d/ H/ I
- Serial.print("\r\n\n");" n* m, a# L. C) F: s/ r8 I# ]) \' m/ p3 d
- pinMode(2,OUTPUT);
3 R- i& A1 {8 n3 x9 U; R: a* E& X - // WIFI
7 c3 Y: L" I$ c( l/ G6 x9 }3 W1 \ - WiFi.mode(WIFI_STA);4 W% H0 p( Y- B: g
- WiFi.hostname("Sparkle");0 }2 ~! {5 `; p& o
- WiFiMulti.addAP("wifi ssid", "wifi password");0 r) O/ h# Y' y+ c2 k+ C
- int tryNum = 15;6 s9 u! K8 I- w1 M2 ]' }
- Serial.print("Connect WiFi");
, [# w% u8 W' D& W - while (WiFiMulti.run() != WL_CONNECTED) {
7 l; y3 ?# E- n E) A: y - digitalWrite(2,0);( n0 e; i9 R" |) ^
- delay(200);
! R; B2 z U/ n0 Q' l9 O! k; N - digitalWrite(2,1);# X3 e( u' z- I* U
- delay(300);
" V2 x0 [( n: v) P: @8 s- A - Serial.print(".");: @0 e! @. x& B2 V
- tryNum--;3 c/ y) s/ j. b& a* `, Y: z7 m
- if (tryNum == 0) {3 J* e+ B, M# c1 q( C) M" b4 c7 ~& i
- // 1min
) c/ J* F7 G" [ - // ESP.deepSleep(60e6);4 ]+ M% R1 \( p6 P6 [ h
- ESP.deepSleep(0);3 c* E% |( q7 t8 B* c# |
- }" a+ d- m8 z# K) b; q, i3 X
- }
. u3 s" D1 H& ?8 x" U( [" o - Serial.print("\r\n");
( T! K( n7 f/ K& l - digitalWrite(2,1);
. O, |; b- V2 u" S" O% C - Serial.print("IP address : ");1 C& K1 }3 L9 x
- Serial.println(WiFi.localIP());
, |0 ?5 z7 S, t - server.on("/", HTTP_GET, [](){
. Q5 @. X( ]# F. X! g3 j$ d* _ - server.sendHeader("Connection", "close");
2 Y2 k/ |, } F' `7 y6 s4 Q" ] - server.send(200, "text/html", serverIndex);
E+ h9 d% [' k! i3 f - });' Z7 I5 Q, U8 G) w' a& a
- server.on("/update", HTTP_POST, [](){* k1 y% O2 l2 }
- server.sendHeader("Connection", "close");
/ Q" j) L; J+ p/ z; T - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 O, [8 s; Q) q$ M7 }7 u0 o - ESP.restart();& V9 l! B" [. R3 m
- },[](){
) b& A& D8 e& J1 Q! R9 }: s3 \ - HTTPUpload& upload = server.upload();' y6 n5 B' i- O* G6 N$ i
- if(upload.status == UPLOAD_FILE_START){
$ O" i3 h" C8 b2 ?: U" Z - Serial.setDebugOutput(true);
5 u) u; M5 w) J3 v0 n - Serial.printf("Update: %s\n", upload.filename.c_str());
' s1 S. c# D! Y. g# ^! t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
]) E* a J7 s" y, n - if(!Update.begin(maxSketchSpace)){
) N0 D: q9 a$ a& u$ m - Update.printError(Serial);# ]9 L; N. B, }8 s2 D% ]% U( `
- }
& N0 d! r N* G: C/ B - } else if(upload.status == UPLOAD_FILE_WRITE){
( W/ W/ ]$ L0 j( A q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: I8 L6 n0 r5 Y" V& @) K
- Update.printError(Serial);
8 E, f& I( l' }8 R V2 } - }
/ j# O: V5 | G" a4 ^ }0 o - } else if(upload.status == UPLOAD_FILE_END){4 p. _% H0 O; F8 i, `, M
- if(Update.end(true)){
% R$ V$ W) I8 |# i" l - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; _, k. t' W0 e. ~* H" |& k
- } else {+ Z7 K# }. s3 U* g+ \
- Update.printError(Serial);
1 g4 d8 T7 Y" _- Q# o - }* {% e3 H7 U& a9 R
- Serial.setDebugOutput(false);+ X2 B- h5 [" A6 N' z6 _' _
- }8 g( T% s0 s9 s) ]( [! K `% A& m
- yield();
0 n4 N0 m/ {$ \# W( X+ A6 S- Q - });
, [/ Q6 g$ W! s! x# o- J3 a -
- ]+ V/ Q$ K* a9 u3 H) F F7 d - digitalWrite(2,0);
* O5 |' |- ?4 E - mainAction();1 q$ P; q G# M) g7 p1 ?5 G
- if (digitalRead(0)){) `: I0 K1 F7 X- w7 }
- ESP.deepSleep(0);0 G. z. t" ^1 B: Y
- } else {
& h1 j O; L' j# P - server.begin();
5 c2 \! v2 A! y3 h& M - }) x4 b7 z* G! x# q# d3 s
- }
) w8 z. O! p3 l1 h$ u8 n+ W; { - void loop() {
* G9 l H# v. e/ K5 E" w- @6 j - server.handleClient();
# I' d' L2 K; j" s - delay(1);3 t* j, {* ]" ?) G7 _! o
- } d; L6 ~ W/ R7 R; W
- String doGet(String url){
0 K R2 @' |0 y* f- Q: } ] - if ((WiFiMulti.run() == WL_CONNECTED)) {$ E, ~1 |3 m) X5 R8 ]
- HTTPClient http;, f2 ^+ O c$ D9 Z7 M, _/ ^+ ^* B
- Serial.println("[HTTP] begin...");" e' I! p3 Q( f2 ?9 [
- if (url.startsWith("https")) {
# _) \! G9 x$ F+ m/ o5 _/ l - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! E3 A+ b7 h' [) U) [# S
- } else {
* G' Z* e$ ^ @ - http.begin(url);- G* K* [8 E5 w) i8 t
- }
. ]- D' E' O) U - Serial.println("[HTTP] GET...");2 d% O A; C4 L! u! h
- int httpCode = http.GET();
7 ~. x+ J1 _( O! u0 a - if (httpCode > 0) {
8 t+ _, d0 | @* g5 J3 t! Q L - Serial.printf("[HTTP] code: %d\n", httpCode);
7 n; d4 w5 T; B) L) T0 w7 o - if (httpCode == HTTP_CODE_OK) {; @4 V' T& s( n- Y1 o
- String payload = http.getString();7 G7 O. a1 J, x- Q! q% R( X
- Serial.println(payload);6 [9 A% V' b+ c+ B8 ]' ^: d
- Serial.print("\r\n"); B$ I x* R1 d/ o. h
- return payload;8 u, ]+ g& b& l$ c
- }3 e, m) A! G: |/ O3 |
- } else {: `$ m" D5 q, n9 c& P5 d
- Serial.printf("[HTTP] GET... failed, error: %s\n"," n! `; B/ p0 x5 _8 g( c
- http.errorToString(httpCode).c_str());
4 ~0 x( m) r1 Y7 |8 ^/ o. s3 E - }% @: D6 y7 D/ ~6 f" ~5 N) |3 j
- http.end();* j, z) A p1 X# m! L2 C, {0 ^) H
- return "";9 X) K0 ~# c1 s5 j& j0 m; X9 L
- }2 j( e, k8 Z& ~# ~# a$ d
- }% \; |) J/ |, [0 z
- void mainAction() {5 m8 d+ R0 R6 c
- // 发送请求
. @2 L( l3 l8 c" p( o - doGet("http://google.cn");
6 [( V) ?0 z, h6 c9 f - }
8 b7 i7 A2 X" b( b% D1 _
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