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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)
- Q0 g0 s9 B2 a7 E- ?; n+ n: ~4 \- #include <ESP8266HTTPClient.h>+ T$ g7 m: f$ x q7 [8 O4 r
- #include <ESP8266WiFi.h>* i N! ?/ I5 d1 y; P+ x
- #include <ESP8266WiFiMulti.h>+ P! C" {* p* e9 U: |! y
- #include <ESP8266WebServer.h>* d# k. y! m& g8 h$ @! p4 _
- #include <arduino.h>
5 N4 T2 C9 Q M X$ L& F - ESP8266WiFiMulti WiFiMulti;1 O* b2 t7 V/ B& ~; \6 G
- ESP8266WebServer server(80);/ p: p, k8 s" O/ d' R5 K
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
8 _: o+ {% A2 {: z: E% d7 P - ADC_MODE(ADC_VCC);7 ^! |$ a; X' d8 m, j
- void setup() {
6 J5 R1 S- Q$ B" ?9 W* i$ d - Serial.begin(115200);
+ g; \7 r, f2 b( C ~ - Serial.print("\r\n\n");) L$ ]0 N6 i$ q- |3 x
- pinMode(2,OUTPUT);4 Z1 j% B7 {. R
- // WIFI( y1 ~5 `& Y+ f2 O: Y( _
- WiFi.mode(WIFI_STA);. P% x9 W0 g4 w2 i. H
- WiFi.hostname("Sparkle");' N$ J- \1 G3 H# G M/ ^
- WiFiMulti.addAP("wifi ssid", "wifi password");
( h1 I4 C' H% Y8 U& @& ? - int tryNum = 15;% Q8 S4 z: n& L
- Serial.print("Connect WiFi");
8 I& e, Y: w4 r' t6 K: O - while (WiFiMulti.run() != WL_CONNECTED) {! B: Y: b) Q, u* H4 K+ B5 k
- digitalWrite(2,0);# V6 u9 a. l4 q3 S; p4 X
- delay(200);0 X0 x- G5 f8 H; Z- R9 ^
- digitalWrite(2,1);
2 _, _3 W) ? u* Z0 b6 X: b% J1 [ c - delay(300);
2 A, z( _( }: R/ A - Serial.print(".");. T" V: U; l9 N0 v
- tryNum--;
- Y& Q! g' G! E4 I - if (tryNum == 0) {2 t+ r" g/ @" ^* @) N6 M0 k
- // 1min
* G9 @; Z3 ?/ b, S, Y - // ESP.deepSleep(60e6);: l/ i2 c% o1 ~2 I& R8 e
- ESP.deepSleep(0);
4 _0 E! N, |, e, Q - }
$ I& U Y/ C- b5 e) F7 y - }5 X: J1 K1 C7 s, C* g! {
- Serial.print("\r\n");
$ F$ S3 M& V* X1 ?9 a& [) { - digitalWrite(2,1);1 V1 R" W# O: k$ D1 R
- Serial.print("IP address : ");
1 e# L4 j. b. Q; ]3 l; b3 R - Serial.println(WiFi.localIP());
* M) |' S9 z3 N2 a - server.on("/", HTTP_GET, [](){0 O3 E; h2 Z/ E
- server.sendHeader("Connection", "close");
! S* b0 i% W6 B/ g) R - server.send(200, "text/html", serverIndex);% x8 n2 ~3 g/ N5 p4 }, V
- });4 T( I, Z7 j6 W
- server.on("/update", HTTP_POST, [](){) |7 v* q3 B! j: [/ E, ?
- server.sendHeader("Connection", "close");
1 e* h0 p; A9 _, C2 k - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK"); G( {+ W; L, r3 \- c$ L% l5 S
- ESP.restart();
( k% U" K$ @! d - },[](){, k6 g k6 L3 ~& Y; T9 }0 f# [
- HTTPUpload& upload = server.upload();
0 ?2 ?) g) B5 |0 ~5 h1 o, S - if(upload.status == UPLOAD_FILE_START){1 |1 q2 Y6 D& r
- Serial.setDebugOutput(true);
2 V7 \7 ]" {- [ - Serial.printf("Update: %s\n", upload.filename.c_str());7 @( Z, r$ p% a5 f: }8 j. @( d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& N$ V/ ^; u$ ^7 `
- if(!Update.begin(maxSketchSpace)){
) O1 ^: H' M! G - Update.printError(Serial);7 L4 |8 z5 X, ~; D+ p/ U( o% N
- }, D* n# V( k+ G" A/ l
- } else if(upload.status == UPLOAD_FILE_WRITE){( L. x' M x- C7 {8 g$ G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# l' r* h- D7 a7 F - Update.printError(Serial);' z; ]; z4 j- f4 O- p
- }* c; c6 J2 Y' D/ e2 m
- } else if(upload.status == UPLOAD_FILE_END){
. j7 f" H# p2 o; l. b B - if(Update.end(true)){# b* V6 u8 r* L* i7 p( s7 F3 z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);% T6 X% G* x" n+ x
- } else {
) ^: r" Z! \: I; ?3 [- \" @) [ - Update.printError(Serial);, k5 m% b$ ~! q8 X$ [4 l
- }, @7 [ X$ p. _: e& Y1 E
- Serial.setDebugOutput(false);
' V7 q$ n; J7 _! g% ^ - }
: d; ?" }; o* W4 k" Y6 X/ ` - yield();' k3 s; i0 j C0 z: H; a @
- });: q6 O8 K" t- m9 ^
-
% _9 B+ T# u5 E, @9 Z - digitalWrite(2,0);0 c5 u( A# r L0 R+ _. I* S
- mainAction();' N7 X) q* `) U5 l5 m2 V
- if (digitalRead(0)){; C$ C' }6 d# Q9 q$ r, s4 A7 _
- ESP.deepSleep(0);
1 x. a, N/ W6 K$ U: {# G; R5 `4 s+ ] - } else {) u# L1 ]: z! ^7 M9 r
- server.begin();3 g' q3 l0 i9 j
- }! Y/ a, c, {2 ^) L$ l- U
- }
: @8 ^0 |4 L1 B - void loop() {9 n7 `0 D1 v! x( \
- server.handleClient();
% A" g7 {4 N3 |7 p0 B. k - delay(1);: ~- L* ^. V# j6 ~. G
- }. P6 R3 E* Z0 }1 U$ T# s- Z
- String doGet(String url){
$ e/ h) A, C1 V. H - if ((WiFiMulti.run() == WL_CONNECTED)) {7 o& a e) l% G5 c- W
- HTTPClient http;
J* u" v$ f7 n! b+ L - Serial.println("[HTTP] begin...");( D4 K& V( a2 r5 @$ C6 K0 ] R0 ^# R! `
- if (url.startsWith("https")) {
" Q0 n* w" V5 ?1 j - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" f" S @ `+ d+ T Q6 h - } else {
2 G& H. j1 [' {( c& A - http.begin(url);
O1 m, L2 W, R - }, z, a6 l( w0 x+ j- ?2 e: |
- Serial.println("[HTTP] GET...");+ }3 Q! Z$ s/ _9 Q. G2 k% s) i
- int httpCode = http.GET();
; C3 d' t- |# C; Q - if (httpCode > 0) {( ^' C, ?8 N( V
- Serial.printf("[HTTP] code: %d\n", httpCode);
$ |+ B$ }" G: a# q @: }& r - if (httpCode == HTTP_CODE_OK) {* O. ?8 B2 [% z V! w: U
- String payload = http.getString();$ I! U' Z, J$ Q, N- L' n
- Serial.println(payload);* w5 [+ ]! S# n2 R
- Serial.print("\r\n");
! r2 ?) d/ |: c* S* J" F | - return payload; i2 h1 U3 z" x8 i* B4 A6 l. k
- }
0 L. N, b& A0 f1 n F - } else {6 }8 b" F5 ]/ u5 d& Q9 _
- Serial.printf("[HTTP] GET... failed, error: %s\n",
" p* v- l/ O" {3 Y2 H' G - http.errorToString(httpCode).c_str());, H$ Y) n& D) k0 F3 U9 V/ x
- }6 {6 M: L- D1 q" B0 W# @2 u
- http.end();
& \: h! m' Y; W7 ~) r - return "";, h% g4 r+ E* z+ V. V; O+ ]# X: p# T
- } t u7 F" U; l+ B0 k1 Z2 M
- }- s6 `% x+ C0 b; i) k- _
- void mainAction() {
2 a0 Y5 s x9 f4 M* [! b - // 发送请求# v8 L' w- b# s) u" Y. t8 Q
- doGet("http://google.cn");
' J4 L9 f6 U/ @& p/ O# D# S! w( o( e - }3 |" I( ^8 l# o- R
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