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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) E3 }! I3 Y) D
- #include <ESP8266HTTPClient.h>
6 e& e2 H5 ~# [: q - #include <ESP8266WiFi.h>
% C* c4 T0 x& z" y* ^ - #include <ESP8266WiFiMulti.h>
! M# h7 p9 T2 j8 ^ - #include <ESP8266WebServer.h># p8 e4 y& R) t" _
- #include <arduino.h>$ L8 R+ P/ P: k" `- e
- ESP8266WiFiMulti WiFiMulti;
! U, j! e. h! H - ESP8266WebServer server(80); H+ I* z& I3 ]* f. B: {# d) t
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 L* q2 p6 @0 I8 H2 {/ m' P - ADC_MODE(ADC_VCC);, s2 i' p* x3 g3 W7 B& C! }0 v
- void setup() {3 d! H+ O8 J8 @
- Serial.begin(115200);
0 |" E+ Y9 _2 G, M/ W. o - Serial.print("\r\n\n");8 F/ B# y- x0 m2 @7 f
- pinMode(2,OUTPUT);
# D% o# f9 j% a0 Q8 n. Q& P - // WIFI' q7 o; H. p3 p$ H l$ }/ y! g
- WiFi.mode(WIFI_STA);
; u& y9 f: g ?: s0 e# X" o - WiFi.hostname("Sparkle");1 V9 O! O9 x9 z; f/ R" E/ R$ f, Z# U
- WiFiMulti.addAP("wifi ssid", "wifi password");
' X; r9 m* s! F: T W4 A& Q - int tryNum = 15;+ D/ v- k M& h
- Serial.print("Connect WiFi");
0 r4 h5 c J& h. y2 ] - while (WiFiMulti.run() != WL_CONNECTED) {
* i- a, {: ^) K4 E: N% Q - digitalWrite(2,0);7 G3 _8 M% c h& s. S
- delay(200); q! t9 \! K+ G4 Y4 @7 D
- digitalWrite(2,1);3 {8 m) X ]# H% u4 W) a
- delay(300); L; r6 L/ C' z
- Serial.print(".");* N9 E/ L0 z' J3 u I" m) `
- tryNum--;
/ u1 x2 R7 D* F2 J - if (tryNum == 0) {* Z, v: i7 \# e4 f. r! x6 Y+ Q
- // 1min# f) S. |3 F9 Y1 K, ]2 i
- // ESP.deepSleep(60e6);% H+ p x ~/ c! M" i5 q) H
- ESP.deepSleep(0);
' X- A: V! ^0 R4 G - }
8 `4 F) b. Q0 x2 D0 M - }/ ]( c7 ~; X, T" ~
- Serial.print("\r\n");
$ c' P, F( l8 m* O' o5 e) W$ A - digitalWrite(2,1);
, o% ~& c- L7 O4 m) T" A - Serial.print("IP address : ");
9 K- _- t+ Z' x" C - Serial.println(WiFi.localIP());
_) u( n$ S) } - server.on("/", HTTP_GET, [](){
9 {7 d3 J; @( {' A8 E. ~ - server.sendHeader("Connection", "close");9 [" `# N- G: P" l9 S
- server.send(200, "text/html", serverIndex);9 L& a7 z6 D6 c$ f( n- X* T. D
- });6 T5 b1 C+ G4 a" a
- server.on("/update", HTTP_POST, [](){, C& b2 a. h. q
- server.sendHeader("Connection", "close");
, C. P; m% h5 v* q& S1 O - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- B; Z2 R8 f6 ~, N: [* P - ESP.restart();
" ^( E2 r' {; @: `5 q1 D5 J6 A- { - },[](){
) @7 F# n" f$ z3 ]: R U - HTTPUpload& upload = server.upload();) t6 L* S* S. y) R3 q" g2 h) u
- if(upload.status == UPLOAD_FILE_START){$ Q' M, D3 Y! S; y5 _! ?
- Serial.setDebugOutput(true);: Q8 m7 x" Y4 d2 U1 `- Y) \
- Serial.printf("Update: %s\n", upload.filename.c_str());. H8 _& D( F2 y" b. {
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 G" g( r7 s4 |( ~% M9 W) g - if(!Update.begin(maxSketchSpace)){# Z3 @2 I: n6 Q X
- Update.printError(Serial);
+ {# c& Q# i: k% p$ d; O - }; s& [& ]- k w Z
- } else if(upload.status == UPLOAD_FILE_WRITE){
# ? e/ j# m$ E0 J/ k2 | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% }0 n' w; T1 n( o2 F8 x3 c5 H - Update.printError(Serial);
* L3 c1 S6 j- F: Z - }
! A4 b9 `9 U, ^! P - } else if(upload.status == UPLOAD_FILE_END){
# X& e7 A; m3 Y9 c7 q6 `8 A - if(Update.end(true)){7 G: b; x% f3 D9 s: r$ r
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* c( S0 h6 j0 \% k$ i: ` - } else {# m" J1 x9 g+ V( U! h, x
- Update.printError(Serial);
7 A$ F. E: q! [& y$ }; n - }
& J: F1 O; @" B4 e - Serial.setDebugOutput(false);1 P7 W+ l4 i1 I" [1 q6 o1 h- E
- }' J& S8 A5 y5 h1 I/ U) A7 u4 w
- yield();! T+ I2 ~% r% r" Z
- });
, y: R. X# L0 Z5 e" B( _ -
' d& S8 J: |3 x9 U9 T - digitalWrite(2,0);
( \# l+ X* [" U* k# u. R# V - mainAction();
. b) U" U, h7 c- B% R8 k/ n8 t - if (digitalRead(0)){+ C8 _: K7 B0 }* N
- ESP.deepSleep(0);: d% o6 h7 J# [" i9 p% q2 E
- } else {( m' v' n, F. X' k3 z& @2 W
- server.begin();+ ~: [, k ]9 x
- }
; ?2 Y4 v5 T4 ] - }
4 v) C; G6 w Q3 I - void loop() {1 Q0 b; K5 g) `& j
- server.handleClient();
2 a+ ^- } R, j# N8 f - delay(1);
0 l+ \, J: m5 _' a e; J% y$ v7 j - }# b3 D: C% ]; N9 U
- String doGet(String url){# {; L( w2 T# O9 P2 C, |3 {
- if ((WiFiMulti.run() == WL_CONNECTED)) {
5 {- a4 z, S7 I - HTTPClient http;, e( m) r9 D ^; \" q% V0 @0 c( T
- Serial.println("[HTTP] begin...");
2 A! v) a3 e9 u y- | - if (url.startsWith("https")) {6 z( Q# S) S6 J7 Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
1 s& D# x) ]/ V" W - } else {. S0 \* w+ a" g+ E
- http.begin(url);$ K5 j; [" l/ [
- }
8 a9 g _+ [8 Y% \# Y. } - Serial.println("[HTTP] GET...");
4 I3 S! }3 T3 |+ u, p1 ^ - int httpCode = http.GET();# M+ O6 ~1 n* c) e
- if (httpCode > 0) {
8 n& x+ ~ |: S - Serial.printf("[HTTP] code: %d\n", httpCode);
. ?" o/ p/ g6 k8 y - if (httpCode == HTTP_CODE_OK) {
. E- I9 a* s) ?9 j) P - String payload = http.getString();
" |% J. f. n, H5 f - Serial.println(payload);
1 ^/ b% H" I! j7 o. @7 x - Serial.print("\r\n");: v6 b5 N( j m! ^$ o
- return payload;
* I! l# I9 E- |$ e - }
3 Q( I8 j& P1 D. n3 [/ t - } else {
; x3 m0 ?: Z; l& M0 P6 e/ R - Serial.printf("[HTTP] GET... failed, error: %s\n",+ f! |& U- l- h( W' [
- http.errorToString(httpCode).c_str());. g) k4 U) w; P% c
- }
* ]: o" }4 q; S- G1 t; C - http.end();! W) L4 I7 ?2 T" S( w4 L# S4 G
- return "";8 |3 P- n* L/ k
- }+ B2 h+ l+ c T: H, Z. z; l
- }' h, J. c# d+ [
- void mainAction() {
8 u9 d ~+ N0 d3 ?" t - // 发送请求. z' r. U; R3 ~* n ~* a. `
- doGet("http://google.cn");
* y% x% }7 G0 ^; A& D - }
" J' V* y% g1 h! b! F$ S# `- N; G
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