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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)
5 e b9 t: a2 D& A' J0 k* \- #include <ESP8266HTTPClient.h>
& D% N+ y* M6 T u1 o7 C; z$ U: O5 b: e - #include <ESP8266WiFi.h>
! I6 a9 g. k* `9 {8 G5 F - #include <ESP8266WiFiMulti.h>* z9 V P$ a/ I3 x# `: ^! i( x2 p o
- #include <ESP8266WebServer.h>% i% R/ f8 ]9 R# `
- #include <arduino.h>8 ~1 k3 o' J7 F# J) S ?* }
- ESP8266WiFiMulti WiFiMulti;1 D- T6 |# R3 b& q' i
- ESP8266WebServer server(80);7 {) e* _$ w+ x" `
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 w! D. T. |( H3 [* G$ @ - ADC_MODE(ADC_VCC);. l% T) \* u7 H9 i# p r5 ^/ T
- void setup() {
; |% I7 G, J K( k0 m - Serial.begin(115200);2 C0 @0 L: D. D V- D9 a
- Serial.print("\r\n\n");) I' h4 f8 u8 ?$ k: ]5 n2 f
- pinMode(2,OUTPUT);. P) ]! }! G% A$ g6 K2 r' f
- // WIFI" g6 N+ r& ]# D' v$ L
- WiFi.mode(WIFI_STA);
, f) _2 C8 {9 w5 U0 W5 F3 A - WiFi.hostname("Sparkle");8 W- G* s3 X( S! G3 W
- WiFiMulti.addAP("wifi ssid", "wifi password");
- F' g$ B9 p" N - int tryNum = 15;; Z! C6 A8 K' p2 V' e% ^
- Serial.print("Connect WiFi");
" b" ?* ]. ]" C( B - while (WiFiMulti.run() != WL_CONNECTED) {
( M7 `6 v) `/ D+ D7 X; C2 F - digitalWrite(2,0);
) B) G$ K( T8 t& l, { - delay(200);
n" K; A8 w$ d6 {( [, e - digitalWrite(2,1);, M j2 {' U* n
- delay(300);) A2 J# z) i: ?) Z
- Serial.print(".");
! f' _# z3 O9 F6 t* ~$ X - tryNum--;
9 r- ]( w6 q; Q$ i1 \" `7 s - if (tryNum == 0) {9 R Y! Z3 X7 Y9 H+ Z
- // 1min
2 n" x3 i& }& ?" w( s4 L - // ESP.deepSleep(60e6);
8 W. P% \" O$ L" y# d. b$ }, ] - ESP.deepSleep(0);; d+ ~. o }& G8 U; P
- }: r9 E H% H2 N, R
- }
% `. B- I0 c9 I2 X - Serial.print("\r\n");/ w8 T6 v) G. `/ M
- digitalWrite(2,1);# c. y7 F. p2 Q% w% X1 l( `; G
- Serial.print("IP address : ");7 N# V' z0 v5 z4 P
- Serial.println(WiFi.localIP());
. K4 z% Q8 t3 O7 G8 }4 ~ - server.on("/", HTTP_GET, [](){
. K! i6 r$ m& | - server.sendHeader("Connection", "close");' F: I( [: ]- r
- server.send(200, "text/html", serverIndex);
4 Y: q \. t* Q: z+ ?! X: U1 O - });5 M$ r9 f7 Q- o6 m/ e# x' E5 T0 B4 d( [
- server.on("/update", HTTP_POST, [](){
' `' C- `) |" t r( v - server.sendHeader("Connection", "close");
1 s" J) Y0 E# A3 g* F - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% ^5 ]1 h" S0 ~- ]
- ESP.restart();
2 z; b( ~% V! f: F& U$ h8 y - },[](){0 |7 P1 L8 y6 n. s
- HTTPUpload& upload = server.upload();
9 f t: h1 J6 [& k8 M* {* L - if(upload.status == UPLOAD_FILE_START){
8 N7 A f+ w: ]2 s1 ^ - Serial.setDebugOutput(true);" F& {" q Z Q( W
- Serial.printf("Update: %s\n", upload.filename.c_str());
7 A& t9 B1 O) d - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 T. h4 u5 W: X8 H- \( ^ - if(!Update.begin(maxSketchSpace)){& g% \6 a1 N# t
- Update.printError(Serial);+ s5 r0 N$ Y! x: M7 y
- }
/ ]* B6 _% l* c - } else if(upload.status == UPLOAD_FILE_WRITE){
r) N0 y1 \' U" J" M1 I - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. t. y, O5 |. {: K4 s* b - Update.printError(Serial);2 u' I; P0 t6 H2 A& P# @" g
- }
J8 F ^/ L, Y# O' G* f - } else if(upload.status == UPLOAD_FILE_END){
9 P& T% x' e6 R - if(Update.end(true)){+ b5 V6 Y5 ^" g$ P
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ O( u! d# F6 K
- } else {
( n2 H) d; o# G& H - Update.printError(Serial);7 i: s* ]$ U+ H3 S" C( q
- }) h3 T! O0 \( n+ k' ^8 i
- Serial.setDebugOutput(false);
+ D$ X7 V f9 }7 w+ `9 z+ f - }* i! A+ B$ ]' q7 ~& ^2 U
- yield();+ L B# L8 z+ f8 \
- });
- Y1 A) P) b# V) r, {" L* D$ R) j; @ -
( ~% h+ g3 v# i7 Y& q1 R1 ?( \ - digitalWrite(2,0);! s; {: Y, v4 {( Y4 |+ U1 H7 ^
- mainAction();
. T5 L0 i i* A( | - if (digitalRead(0)){9 C! z, ~* t- s% U5 k+ v
- ESP.deepSleep(0);2 M: T# `& T1 w. q' O
- } else {
7 A- g( ^! w* z' {4 y3 | - server.begin();
* F& L$ ]9 U0 s, I# k+ X, g - }# S' p9 \1 f, j. T* G
- }
; D+ J1 r- ~$ f r% |3 C - void loop() {+ b! g/ ]& B8 _/ [! a
- server.handleClient();. n' g9 k& O# o( A7 E# N# Z
- delay(1);
' p! a" e' D# ]! Y - }- q; ?: e9 d9 {+ \" \& F
- String doGet(String url){. {6 q: v1 c" ?# W
- if ((WiFiMulti.run() == WL_CONNECTED)) {
) u6 ?& Z" f# \7 I9 o, Y- e( R - HTTPClient http;
0 ^- Y; g0 p1 f - Serial.println("[HTTP] begin...");6 X+ ?: ]6 Q3 P
- if (url.startsWith("https")) {& F7 z3 ?4 W! A% E
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 M1 u+ f8 b! [ - } else {! x, G/ p* S9 {% d2 S
- http.begin(url);
6 h; ~, l2 S2 K# k - }' x! u, n9 L% ? g: k6 X5 p
- Serial.println("[HTTP] GET...");& d2 ]6 Z; {1 K# U0 D
- int httpCode = http.GET();7 g7 e+ d, n. _+ C! C
- if (httpCode > 0) {
: d/ }" X: v) a, ^ - Serial.printf("[HTTP] code: %d\n", httpCode); }( X y" {! a. W' a
- if (httpCode == HTTP_CODE_OK) {
2 l% C' T( Z( [1 Y2 P - String payload = http.getString();
, W7 B) G, @6 ^ - Serial.println(payload);
4 ~1 ^/ R; c3 D3 l' \ - Serial.print("\r\n");
- e5 l; T4 T" I7 G5 v B - return payload;+ s+ b0 p# u! A, _& S! R
- }
/ w) o# n6 O, _0 l - } else {7 b, h- |, B3 z! l# v! s5 b
- Serial.printf("[HTTP] GET... failed, error: %s\n",3 B; T9 ?0 N8 A. Y' x% n9 G
- http.errorToString(httpCode).c_str()); ~; t1 h, x" D5 X/ \
- }
8 m7 S# b* D, r - http.end();
7 A0 { k3 l5 ]* G6 I - return "";
* ?, d8 a0 W* T4 m$ U9 u - }
% D) i8 R$ O6 W: { - }' g+ M$ L0 n5 z, [
- void mainAction() {) i5 [& @* n- L0 T* T
- // 发送请求! k" ]) d# s; |" S }
- doGet("http://google.cn");* Y( d7 c4 y$ a. ]1 o
- }4 x$ u5 J6 P( H9 k& d! N0 V$ s$ i
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