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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)2 ?. k4 U- _6 a7 v7 z5 f
- #include <ESP8266HTTPClient.h>4 ?, Y8 R% D$ F* m
- #include <ESP8266WiFi.h>1 J r6 H- s/ W
- #include <ESP8266WiFiMulti.h>
* a9 s/ v/ l8 ]2 K - #include <ESP8266WebServer.h> Q8 H2 ^8 G- o! `( E% y
- #include <arduino.h>
" W' g5 ~) `4 M- M; B - ESP8266WiFiMulti WiFiMulti;
! G2 P" b9 D7 U# r) c! g - ESP8266WebServer server(80);
/ j+ U& C9 `9 S+ z! t - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( D. t; q' q; n1 i, L
- ADC_MODE(ADC_VCC);* E1 I9 r9 g3 F" \0 S
- void setup() {' [& d$ v1 p- q3 x
- Serial.begin(115200);
) C* ^5 l: |; d0 f q9 y2 u0 C - Serial.print("\r\n\n");4 n) y O4 q" n. I
- pinMode(2,OUTPUT);/ k+ L/ M }7 M# f3 ~& Y9 a9 e
- // WIFI
! |: J1 }- s5 t' P% B1 m - WiFi.mode(WIFI_STA);
+ E4 w: z: J4 h6 h2 ^- Y - WiFi.hostname("Sparkle");5 `/ p( o7 t1 w' A
- WiFiMulti.addAP("wifi ssid", "wifi password");
- ?. J2 s+ I% Y8 W+ q; F m& y - int tryNum = 15;
. h( i+ K) h/ z7 q3 q - Serial.print("Connect WiFi");
P! \$ H0 {! L( T0 b2 _+ q* o - while (WiFiMulti.run() != WL_CONNECTED) {& V2 L# x v6 _
- digitalWrite(2,0);
' l2 Y. K. a* |" _- g+ D4 _8 r - delay(200);
" e8 G2 X p+ d8 j - digitalWrite(2,1);. \) q5 V3 Z/ z# Q! |
- delay(300);
! Z9 Z+ y: T" J* t/ `4 O - Serial.print(".");
5 F" `! j- v/ G& o! P7 a, r - tryNum--;; v0 |9 t, S( Q5 T6 t
- if (tryNum == 0) {7 k! {7 ?. Y, H
- // 1min& ~. o- {: I3 |9 d; c5 K
- // ESP.deepSleep(60e6);
2 D8 P$ A4 ^1 G! b - ESP.deepSleep(0);
0 _8 g; s, r9 |, i6 r) t9 M - }
" H( q8 s: B1 I3 N& p - }
( N; z9 `3 Z* h - Serial.print("\r\n");7 R) u# I# Q5 T8 z% H, _& h
- digitalWrite(2,1);
$ x' T+ h) y) d; ` - Serial.print("IP address : ");
" _, a4 D9 [- H6 w6 Q - Serial.println(WiFi.localIP());& d3 c5 l' [; l1 \5 i
- server.on("/", HTTP_GET, [](){
# y/ M+ q t6 `+ c# a1 L4 ?! L7 s) J F% A - server.sendHeader("Connection", "close");
2 A5 T O; x3 X, {" }5 q7 i# u - server.send(200, "text/html", serverIndex);! X; i8 n) o4 `
- });
" D2 U; H: m* Q& N: U, ~ - server.on("/update", HTTP_POST, [](){
) u. E# ?& a- W - server.sendHeader("Connection", "close");5 {" `$ ]0 R' m% `+ Y0 T5 }! _& L4 H
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");/ c, m* h$ V* ~ m+ L
- ESP.restart();$ F. S- V& |0 ^$ R3 m4 o
- },[](){
2 x/ C X9 ~& a3 r# Y3 o) F, l - HTTPUpload& upload = server.upload();
, i$ p2 ]5 v m1 \+ ^7 D1 c" h - if(upload.status == UPLOAD_FILE_START){9 j+ Y: N8 N6 l* P8 h& a) `' z$ u
- Serial.setDebugOutput(true);. H# l" U! e" t1 }
- Serial.printf("Update: %s\n", upload.filename.c_str());3 l0 f' c, P# }; A1 S* K1 |
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
) d0 ]9 `7 v! [' s - if(!Update.begin(maxSketchSpace)){, g% j3 [ r* J# Y
- Update.printError(Serial);
4 ^0 w9 E; J! ^+ n+ O. v - }7 S: S0 f4 n2 c% o+ o
- } else if(upload.status == UPLOAD_FILE_WRITE){
. Z% m3 T: u2 x9 Y% N/ p9 u E. c' f - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 C& M9 L4 a# `- I
- Update.printError(Serial);* b3 d$ r2 ?, e, k5 I5 n
- } n1 e! v& @* `0 M
- } else if(upload.status == UPLOAD_FILE_END){
9 x0 M. { O3 O1 H; x - if(Update.end(true)){ i. X J k; M1 e R2 l
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 U1 t/ b* D% N5 \, Q9 a/ ]" o8 B - } else {# v8 Q( E- D {; T- M8 f! y3 i
- Update.printError(Serial);" `3 _3 @6 Q) ~
- }
/ ~0 j! C; t& m5 x6 Y. _# p6 J - Serial.setDebugOutput(false);
' r# `! o4 m* k% `1 M - }: w* k: u0 W# K9 o' u
- yield();) \0 c1 v% E. X& k
- });
+ y3 A4 j# y% r9 \9 a -
& d3 I- |* m- f1 e0 W% y0 z( g1 [ - digitalWrite(2,0);" } w2 Z- ~0 e
- mainAction();! M; G" N1 F( C1 v- [
- if (digitalRead(0)){
7 H* Z7 H& I; c5 p' u - ESP.deepSleep(0);
' i3 t3 D' M) f' M$ G J" Z - } else {: u' o2 }# c% E E$ K
- server.begin();
5 \$ P+ z6 f9 {( F6 E - }# a! V$ P6 {2 m6 @
- }$ ?* x, m7 o: N) J
- void loop() {# T/ ^4 w- F( J3 ^+ a$ f9 G
- server.handleClient();
' G- `' E1 N6 _/ x- x - delay(1);& A/ F0 h0 S, g+ Q
- }
) g$ X" ` ~. D" G6 T - String doGet(String url){
* `# r8 d9 a* Y# k' V8 g. l - if ((WiFiMulti.run() == WL_CONNECTED)) {
* w2 `8 D* }& ?2 W - HTTPClient http;
9 a- g$ `' a- M# i: H9 R- v6 q - Serial.println("[HTTP] begin...");
) h' v; s* ~! j5 y4 r$ @ - if (url.startsWith("https")) {
$ D$ p4 k6 G( I$ o0 u. k0 a) K - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); ^/ X$ Y6 d! j4 }
- } else {% |" D: ~* k* E
- http.begin(url);: u5 a$ b6 k- n; |
- }4 V; O( k$ x6 L& p- D( Q& G
- Serial.println("[HTTP] GET...");8 e. K( c9 k4 l" Y* y
- int httpCode = http.GET();
G% o3 J& D6 n3 C0 Y8 u6 p+ c+ j - if (httpCode > 0) {% y4 D# _1 Q0 K' W3 J6 O
- Serial.printf("[HTTP] code: %d\n", httpCode);. _4 _7 h# l& W
- if (httpCode == HTTP_CODE_OK) {
! P/ E* J9 H% c) z7 l - String payload = http.getString();
C, R, J- I8 l - Serial.println(payload);
- L; c2 a2 W9 W' J, D, m - Serial.print("\r\n");2 k5 r/ {+ [% P+ x: q7 Z
- return payload;
! |2 J0 A" a* a1 q9 ^ - }
; ~& `5 O0 w3 q! e8 i: O4 q - } else {
* ]% W m) X0 i# Y - Serial.printf("[HTTP] GET... failed, error: %s\n",4 y) c( H0 M' N
- http.errorToString(httpCode).c_str());
4 D& R, o9 y" s - }% b& k5 S6 \2 ]% Y% \( [3 b
- http.end();; j; P1 N% t# C
- return "";
2 b4 [$ q: k# ~- I1 Y, `0 r - }) q# g+ ]6 d- }. J* b; V
- }1 ^& ?+ N ~4 d5 ?- p. b3 Y
- void mainAction() {* J5 k5 m9 q1 S% J
- // 发送请求
* w& e5 o- q+ w% Y - doGet("http://google.cn");& l: R& U+ H5 D+ `: Y8 G
- }
% `; o% `8 p8 N, \
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