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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)! ^4 W; ^! `! N& G) [2 B8 { _
- #include <ESP8266HTTPClient.h>
2 N8 e5 X9 j1 i& {3 u- V* n% H" h - #include <ESP8266WiFi.h>" ?" h' y7 K& I, T1 `
- #include <ESP8266WiFiMulti.h>( L" Q* K$ \. E! m- ?3 F# q, {
- #include <ESP8266WebServer.h>
! J$ j: D- L$ g# f - #include <arduino.h>8 k; g9 l% i- V" K b
- ESP8266WiFiMulti WiFiMulti;9 a0 B3 d) L' L; n* W
- ESP8266WebServer server(80);. Z2 i5 a$ z0 G0 N) w" t
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* u6 d, k k% M$ I - ADC_MODE(ADC_VCC);& n& V8 q, W4 @4 p
- void setup() {: c, T; }) a: G7 X- {
- Serial.begin(115200);
/ u/ I) o; X; v+ F, s# U: j - Serial.print("\r\n\n");9 j3 O( U' ]5 J) ?* `3 \
- pinMode(2,OUTPUT);
7 q0 @6 `& E, g t - // WIFI6 a1 ?2 y$ U# F/ B5 u# \4 l! I: X
- WiFi.mode(WIFI_STA);
% i. V5 h2 G2 W7 t5 L - WiFi.hostname("Sparkle");
+ ?( h3 ]! \/ W8 z3 p' h( P; g - WiFiMulti.addAP("wifi ssid", "wifi password");
8 ~7 k% X) A) C+ S; ]2 ` - int tryNum = 15;
* j% Q& m; N. F* b - Serial.print("Connect WiFi");
- _4 }) C7 ?0 F y( | - while (WiFiMulti.run() != WL_CONNECTED) {
5 e% \3 i1 p; f; M5 I - digitalWrite(2,0);
& l3 X4 h8 a; u" v" c8 V4 P1 _ - delay(200);; Q6 F/ I3 {! D
- digitalWrite(2,1);
1 {. N/ ]( }1 @+ ~ l) x* O2 i - delay(300);
% h7 b9 |1 _7 u# f3 n4 K: D# Y - Serial.print(".");
6 P7 q$ t. f' `# ` - tryNum--;6 a% e1 h3 R/ e0 ~- s
- if (tryNum == 0) {
% p& v$ t' w4 S; Y: l - // 1min
, O! t9 S7 h$ q: M4 o - // ESP.deepSleep(60e6);
) ]* U. F) s) J+ F: ]( U0 f - ESP.deepSleep(0);
* L) {& |% e, D: w8 j; l- E - }( Q4 t: d1 _2 @ D
- }- i' ^3 k( `& v( n& e
- Serial.print("\r\n");
& C8 H) @! Y/ v" ] - digitalWrite(2,1);
( C6 a6 X% K" F - Serial.print("IP address : ");
, T. ~; H/ p' q/ ^' s& H - Serial.println(WiFi.localIP());
6 s5 P. N/ {" } - server.on("/", HTTP_GET, [](){
* l' q I8 X! G0 ?7 T, I3 p - server.sendHeader("Connection", "close");& H* N( f8 p6 j, v, R# x* f/ e
- server.send(200, "text/html", serverIndex);
" n* U; r* ~2 _$ l - });% H# J& X L1 z$ f& X
- server.on("/update", HTTP_POST, [](){
0 Q X1 V \2 j, ` g - server.sendHeader("Connection", "close");
$ | k2 i2 U2 h% R - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 w5 O) z* e4 w6 v0 @- }7 @ - ESP.restart();( j" l7 l2 u) k8 D
- },[](){
, m; _8 H; z+ G! ? - HTTPUpload& upload = server.upload();
. |! F( ~* B: b$ l' }0 C - if(upload.status == UPLOAD_FILE_START){: U8 ^) n' Y( B
- Serial.setDebugOutput(true);& x# G! A. v# s- B0 n1 m
- Serial.printf("Update: %s\n", upload.filename.c_str());
9 P) T' _' L2 @" w+ f - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% w8 W9 z9 T( C, H4 ~" W - if(!Update.begin(maxSketchSpace)){, _7 i3 U" e$ N' f
- Update.printError(Serial);* R+ q' g" J$ ?: B8 S
- }
4 F. w- |4 C, u) Z/ n5 S, V - } else if(upload.status == UPLOAD_FILE_WRITE){! m& m p0 [; g9 [# K: `
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' h; k) U+ G" c0 Q+ k: V3 t9 c
- Update.printError(Serial);9 `2 N* o9 [; o5 `8 R( `
- }
8 N. f5 f! i! L/ J( j - } else if(upload.status == UPLOAD_FILE_END){& i1 u# M6 v8 S, I+ C
- if(Update.end(true)){
8 P0 P3 r/ j* W3 b4 x( i: O+ ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 E8 A7 b3 v% v% F/ O
- } else {' f: l- |3 O6 ^* v9 h
- Update.printError(Serial);2 y8 C, u) g |* K% t
- }
! V, g6 _* v0 x( k - Serial.setDebugOutput(false);3 B/ h$ i% A" i0 H; H
- }
7 f; C; m/ v% t' Q2 j - yield();$ a" @2 W$ n0 @! i2 E
- });
. ]3 L6 G5 O3 F* `0 O9 G - " u9 G" g& [. _3 b
- digitalWrite(2,0);
- o9 D5 u0 f. b+ D, d$ j6 J - mainAction();
" C! t& x! X5 e$ L) s- s - if (digitalRead(0)){
. `2 F# Y3 S+ t) J8 j# @ - ESP.deepSleep(0);9 t5 j8 O: L4 O3 b/ O
- } else {
7 d; H9 C, F$ ]$ R' P. r - server.begin();9 r0 i2 w; }- e$ C$ l
- }
2 J1 C: b- ?0 t - }; V& K& b2 f* Y& t$ V4 l
- void loop() {
- O; ~; A- v) D( N2 l9 K6 x5 D - server.handleClient();) ?' a2 `- X/ E- `8 @) G
- delay(1);
# r2 e( p; K8 J p7 I9 P: f( a9 A2 P - }
+ y1 k& @- a6 a2 P - String doGet(String url){
0 o0 _% E% I$ V# A6 f4 } - if ((WiFiMulti.run() == WL_CONNECTED)) {
. z$ d5 @; n3 K3 H; {* g4 o - HTTPClient http;% O# R$ q" n3 F
- Serial.println("[HTTP] begin...");
% n0 h! Y5 l- i7 U; w - if (url.startsWith("https")) {! \, U! }# q* f
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
: P+ z. ]* t+ R( G) E% W- S) w& \4 s - } else {
5 N2 _0 f$ Q/ ], r( b, i0 w - http.begin(url);1 |- n: ~( [- \1 Q/ @
- }; |8 _ K5 G7 n5 ~% ~; a. e- L ]
- Serial.println("[HTTP] GET...");$ B2 P% j- s& Z% i; w8 a
- int httpCode = http.GET();+ a+ r- }: S/ [% N
- if (httpCode > 0) {
% q, @: J- l9 q4 `, Z2 L8 [6 X t - Serial.printf("[HTTP] code: %d\n", httpCode);9 K( q* E6 ]7 ^9 z& K/ }# [
- if (httpCode == HTTP_CODE_OK) {
: j1 A7 d# B4 n! B I+ | - String payload = http.getString();
1 }% P* D1 x c+ G( }% I - Serial.println(payload);
/ C. o5 ?; C# Q! d5 l {' P - Serial.print("\r\n");
& I$ ?$ Q3 W. R; v& B P0 o - return payload;8 Y5 c' l+ f$ j. K2 U) Y3 V4 h: b
- }
3 j3 u! D# n$ v' ?. Y - } else {& {& W6 t9 V" F7 d+ X0 {3 ? ^
- Serial.printf("[HTTP] GET... failed, error: %s\n",
) ~$ q0 E$ p7 [3 H' ^3 C+ W: b- r6 s - http.errorToString(httpCode).c_str());
$ S+ _2 j! A5 d4 d. d0 a" d$ X - }! }2 Q- z* l7 ~) M7 y
- http.end();0 i9 i0 ~$ X( Z
- return "";9 M5 ]8 ]* a7 X& N) q9 P
- }
. h) `. x1 t, c. E3 x: m% H; U* Z6 S - }" n7 \$ J+ r' k9 Z% [0 U. w
- void mainAction() {
/ }8 a' p d& C - // 发送请求
0 `) |" |" R. O# {; @ - doGet("http://google.cn");+ g0 k" @" C2 e( V
- }
* s$ N8 E) Q$ l6 C
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