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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)6 `9 p" O' V, D* ^
- #include <ESP8266HTTPClient.h>
) @7 h+ Z6 a9 C f2 |6 W - #include <ESP8266WiFi.h>
7 J0 ^# v; D; X3 k3 q3 j - #include <ESP8266WiFiMulti.h>
3 K$ ]; O- i2 b, `- ?8 S' b - #include <ESP8266WebServer.h># S/ J/ Z' u8 C
- #include <arduino.h>
4 m5 U4 C7 x! G, v' L* V- [1 D - ESP8266WiFiMulti WiFiMulti;3 Z- K; d7 f7 T% c7 v. Y( B: m' ^6 r
- ESP8266WebServer server(80);
/ {$ m- d2 Z! u7 ` - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 Q9 Y7 i9 X+ L4 k2 H
- ADC_MODE(ADC_VCC);& Q9 U# q* F% K; D9 O
- void setup() {' k' I0 Z. ~8 L O
- Serial.begin(115200);
; a- F4 Y; n- c) ^ - Serial.print("\r\n\n");
4 w3 W4 M8 {. q# x" m. |, n, ] - pinMode(2,OUTPUT);3 d3 q4 u* R* w7 r! w. v* g
- // WIFI9 y, M+ D5 e. `2 r2 \) }
- WiFi.mode(WIFI_STA);
, Y. `) R J, c0 O - WiFi.hostname("Sparkle");5 @' ~. i0 b$ c5 e
- WiFiMulti.addAP("wifi ssid", "wifi password");5 [" v8 ]6 N; _' z! r
- int tryNum = 15;4 H& D; {+ p6 m$ T5 I
- Serial.print("Connect WiFi");
. [$ X# l+ s8 b8 k3 E' B - while (WiFiMulti.run() != WL_CONNECTED) {: i& F6 G0 u! t3 v' S
- digitalWrite(2,0);
) y: l1 v2 f# o2 u/ a3 s. ~ - delay(200);
( l; J( t5 e8 P. W/ b: Z - digitalWrite(2,1);
% ^+ e, p; m1 f - delay(300);
9 l5 t% P6 f ]3 [, `2 h - Serial.print(".");% J+ ?' I2 a5 j2 R
- tryNum--;& I7 {6 ~6 q& t$ F J F; x: [1 x
- if (tryNum == 0) {8 _+ P$ @) Q' `& d
- // 1min
^7 U8 w& o. @0 X8 F ^0 j# @# P7 o - // ESP.deepSleep(60e6);
. _3 N. n! w' w4 _ - ESP.deepSleep(0);9 F$ |7 a W4 g: l- h9 p
- }+ m* v% ^; h8 T3 I" |) s
- }* p8 A, E+ U# N1 L# H# R
- Serial.print("\r\n");" e- L9 J, S! Y/ @/ Z
- digitalWrite(2,1);% U; }. v% D. D2 o5 k4 Q& l
- Serial.print("IP address : ");
; I `0 v/ f5 t! E3 b( ? - Serial.println(WiFi.localIP());6 v9 M% p: X0 E2 ~; N' ?$ L8 T, |
- server.on("/", HTTP_GET, [](){
6 P. a+ _6 k* f9 ^ - server.sendHeader("Connection", "close");4 \/ \9 p# Z5 l4 [) u
- server.send(200, "text/html", serverIndex);/ K& R3 n1 D5 i; Z$ N
- });
9 r8 a' j% V9 V& J* K: l h - server.on("/update", HTTP_POST, [](){( ~7 M3 x7 p: q2 w; `
- server.sendHeader("Connection", "close");
2 q2 p" ?8 N( Q, g- S5 s - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 P/ f: @7 `5 J/ E - ESP.restart();
+ _2 d% @$ b" b- t( t - },[](){
9 ^' A. N4 Q# @ ^4 W" H - HTTPUpload& upload = server.upload();
7 M0 ~+ l% _- U" c! D# P w - if(upload.status == UPLOAD_FILE_START){3 v H- \ h3 p, v
- Serial.setDebugOutput(true);) z& E7 B) `8 k& B
- Serial.printf("Update: %s\n", upload.filename.c_str());+ t% i6 u0 g- k2 ?8 b
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ }: b. I( X1 W( c, o. c
- if(!Update.begin(maxSketchSpace)){
4 v# `- l2 I# C# j$ s - Update.printError(Serial);4 J( X8 ^ F [: B5 i7 t5 V
- }
2 k% j% J" x8 a - } else if(upload.status == UPLOAD_FILE_WRITE){
9 R5 v# H9 b% M& ]1 D; n: Q7 H - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" r) z0 n N' Z( T' _3 U - Update.printError(Serial);
# b% f/ t$ G2 ~( ]: d6 S: ]( C - }' n* ]& `, Y2 ]: ]+ m* D4 ?
- } else if(upload.status == UPLOAD_FILE_END){
9 w3 p. a% T/ r, Y" Z% g - if(Update.end(true)){
# q$ a/ r* S! r - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 h. p K1 k% i0 l4 s9 q
- } else {% K' l: M* D) K5 ]7 _& }6 V5 x
- Update.printError(Serial);3 ^) U5 o0 c* N/ k1 N$ ^+ B% x
- }
, @* q* Z! P% `, N - Serial.setDebugOutput(false);
, R) Z! }4 n' H" r% \ - }
; D! c0 R$ I( T/ |$ n) ? - yield();
5 ^6 W4 l/ E/ I' _ - });
8 c- }" I v) L - % ^6 q2 X$ \% E+ x# O# m' ~
- digitalWrite(2,0);
1 w/ `$ U, g, @( b J - mainAction();6 y5 |' `/ c. r
- if (digitalRead(0)){
" f+ X' j* F, O# f - ESP.deepSleep(0);
+ z! C& f1 @4 {3 M0 O- W* \* H$ Y - } else {
. Z+ R/ h, e2 C; A; s) J' u - server.begin();5 z5 r" M, m' t4 ^. ?
- }
' T$ M* i' U5 @& }2 _ - }" Q' ^ a" k5 w0 T
- void loop() {$ d E$ P3 _5 S; I1 W
- server.handleClient();: k( i1 |% D2 q' v. g" X
- delay(1);( [2 @4 ?" F, h4 i" {
- }. N; X J+ r4 u
- String doGet(String url){, H& I* m" \6 b8 w, h6 Y
- if ((WiFiMulti.run() == WL_CONNECTED)) {
6 s8 i; y) \9 e9 i - HTTPClient http;
/ q& s$ E0 j% F& s" Z: E" O- `9 l# ? - Serial.println("[HTTP] begin...");$ ]6 ~2 k$ s) I+ t, f! q
- if (url.startsWith("https")) {+ @4 a. b1 Y: f8 q! {$ Z7 M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 \) ~% ]* i2 j" U, C
- } else {
& P$ F2 T( k8 d% Z: c - http.begin(url);- C1 F# C0 m* ]
- }1 [: f2 O1 I+ j& h, d) V7 k+ X' B$ @" q
- Serial.println("[HTTP] GET...");# G1 L3 Y0 M+ c7 E/ [1 b
- int httpCode = http.GET();- d t6 H' O4 ]5 ~9 A
- if (httpCode > 0) {1 l% E: R% E2 p$ n0 s/ D+ T% W
- Serial.printf("[HTTP] code: %d\n", httpCode);0 |4 C9 ~. a) E! Q* Z/ e
- if (httpCode == HTTP_CODE_OK) {- O- [, N/ r# k: y
- String payload = http.getString();
! L6 I) Z' P3 @- a - Serial.println(payload);* [+ ]# ^( p8 i
- Serial.print("\r\n");
. o# o3 b' x5 ~: y/ \7 B! t5 H - return payload;. U! q4 L. Z* D4 o( o' k
- }4 r( V4 k/ Y" V# c' k5 I
- } else {4 ?8 w- H- ^7 h; Y" V
- Serial.printf("[HTTP] GET... failed, error: %s\n",
6 I9 O/ \: S6 h$ p& [ S) A - http.errorToString(httpCode).c_str());
* m% d* c. U) d6 w" G: @% D - }
0 N" R+ S9 M% Y. s - http.end();
1 t, p0 J1 l& j1 {4 Q) t - return "";9 e Y8 c% c- Z, m- k6 b( j. _0 h
- }0 v# { }* q% e$ z: g
- }
+ o9 h( c+ V2 W3 Q; e5 S - void mainAction() {5 N" I3 I% A- m$ A9 F( T$ w
- // 发送请求
+ \+ Q5 ~( P7 c - doGet("http://google.cn");. ]0 R8 e2 h3 N- p: E& s
- }$ m) t1 x( D. U. B2 r* R
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