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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)
. a7 z& l9 w m1 k- #include <ESP8266HTTPClient.h>
" U2 c$ B5 I( |( Z# t# J# m w - #include <ESP8266WiFi.h>
1 n1 X: F0 X2 s3 R, \ - #include <ESP8266WiFiMulti.h>! | t. a7 e& X7 H" f- h
- #include <ESP8266WebServer.h>
; m) ?# e# x! v, j# B+ t( Q! ` - #include <arduino.h>9 o& I8 ~4 C) N( }
- ESP8266WiFiMulti WiFiMulti;2 O% K' |, {% q: V$ p7 f
- ESP8266WebServer server(80);& J1 L- i9 w; r: a9 t
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ V _: ~. ^0 p/ [5 j& q8 G
- ADC_MODE(ADC_VCC);
* A% u! R5 I E" l' G/ p! w% y" o! g - void setup() {
$ V' F% s' g2 n6 M6 S! B - Serial.begin(115200);: f3 d; ?" s7 ^' L
- Serial.print("\r\n\n");7 c2 B( _8 T! ?4 J( p8 g9 t$ Y
- pinMode(2,OUTPUT);
( {7 ~: [$ ^3 e/ Z - // WIFI
* M, H) d, [* _5 V/ w9 ] ^3 K - WiFi.mode(WIFI_STA);# _* P: g7 a9 v9 h2 o
- WiFi.hostname("Sparkle");
k( e( N2 r, u# ? K1 ?, n# a3 D9 [ - WiFiMulti.addAP("wifi ssid", "wifi password");
! ~ z& Y% {- k* H O" E - int tryNum = 15;+ Z% J' N$ F& Z/ d
- Serial.print("Connect WiFi");
0 j: h1 V8 S8 i9 n+ o - while (WiFiMulti.run() != WL_CONNECTED) {$ P: \2 U" |* `1 b
- digitalWrite(2,0);7 e" }: d* d- u" J3 V y e! `
- delay(200);; U0 ?6 k# F% z
- digitalWrite(2,1);
3 N/ `! w1 `1 ]; Z) [# @2 M - delay(300);
% b8 d2 k' s6 ]4 \0 G - Serial.print(".");
! M6 E0 Z0 Y0 J( G7 Y7 P# K' ?$ @ - tryNum--;' O! T6 E* {" Q2 l
- if (tryNum == 0) {( `5 ~0 d$ P" T4 L( p" f+ \0 z
- // 1min9 p4 t- D$ \/ B" |- Q! U% h
- // ESP.deepSleep(60e6);
. z9 N" N+ o" s2 P( w5 I - ESP.deepSleep(0);
$ ~# `& T- o$ s o$ M& H: s - }( _; ] k0 i4 y' Y1 ?3 C
- }9 M8 e% l( d* X6 J* Y
- Serial.print("\r\n");- x1 Y* M1 S. j
- digitalWrite(2,1);9 d* Q6 v& k6 v/ n, B
- Serial.print("IP address : ");
: C7 C0 t+ O' X5 b - Serial.println(WiFi.localIP());4 [" Q+ U: `) e7 S' u
- server.on("/", HTTP_GET, [](){
8 Q' F9 u7 X$ ^/ N, H - server.sendHeader("Connection", "close");
# \, j) f8 S! i6 U' x% E - server.send(200, "text/html", serverIndex);
$ V1 G( d4 s. i5 M5 I - });
9 J+ s& A" N2 T, p1 `; P - server.on("/update", HTTP_POST, [](){! ]7 J0 d* g4 _. @4 @7 A
- server.sendHeader("Connection", "close");) Z6 J! e$ Y5 q/ }- k
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- l B2 |; E3 Z2 o) D - ESP.restart();+ C4 u E* d: l& o
- },[](){4 w ^! C6 \ ~; v: t+ m
- HTTPUpload& upload = server.upload();, e3 m5 J# W/ G" x: G. j |, O
- if(upload.status == UPLOAD_FILE_START){
* A% Q$ t* @$ `, e* S - Serial.setDebugOutput(true);- U$ G; i3 T$ T/ Z2 G+ m! G0 Q
- Serial.printf("Update: %s\n", upload.filename.c_str());
# ^+ ?2 w& H% g' ]" v) ]. g - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: o& e, Z/ a/ i) X7 i6 H1 t; v* n - if(!Update.begin(maxSketchSpace)){
# {% Y s+ g5 i7 g2 S2 G( ?& | - Update.printError(Serial);: C+ k! ~2 [0 ?; I
- }; K w3 n& R' ?/ Q) G+ n9 I
- } else if(upload.status == UPLOAD_FILE_WRITE){
5 M7 \3 D# t7 E2 K0 b2 s - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 y' w$ N N7 f0 @4 E - Update.printError(Serial);
; Z. p9 L3 ]4 G( C: d - }
' _- q# N2 j9 q# A4 Q3 F - } else if(upload.status == UPLOAD_FILE_END){
( d3 a; Z$ G! h7 G! D% @; j, t! V% V8 h - if(Update.end(true)){
2 _7 H2 U6 V$ A2 @6 Q& p! I - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- I* [* G4 V8 a. [) f
- } else {7 \" ~ |2 H9 k2 N
- Update.printError(Serial);' V$ L$ l1 b+ ~ t% J9 y) ~: O( s
- }
$ x& J& A/ D- d; I/ h1 I - Serial.setDebugOutput(false);
, W$ g6 w$ M9 q7 e7 |: ` - }
9 N6 H) x* c1 C0 ~ - yield();
. y* x; k0 r: w# S- I8 I8 {$ B& u - });" A! f0 J9 W, z4 P, X
-
' [! h" y1 v+ I0 m$ H) }$ `$ D - digitalWrite(2,0);0 a- `9 ?: g4 v# n- K1 \2 q
- mainAction();
2 G" W, W1 O, c- S - if (digitalRead(0)){ B, n& b1 N+ Q, {+ d
- ESP.deepSleep(0);
- l8 b* N7 h) [% Y+ k" m# A: ~ - } else {( K4 n' E/ `' ^
- server.begin();3 G" H; }! L) S! S% I2 y$ j
- }
) t- E- ~3 i3 k- J3 i9 o% C: O - }
9 Y$ ]7 X$ s! O& @ ?) U: L - void loop() {- a- ] j# ]) w: B1 Z6 `: Q# ^( |; e
- server.handleClient();; d8 ^. I: Y% [- b
- delay(1);4 @! w! K: ?% M
- }
9 |% c3 b# g4 c# s r$ Y4 r - String doGet(String url){- O0 D' O% I% [8 R
- if ((WiFiMulti.run() == WL_CONNECTED)) {9 j8 k/ f: F1 K6 P/ d; Z2 E
- HTTPClient http;
0 x& g' k) \4 v) [0 ~" M - Serial.println("[HTTP] begin...");
' n0 j) m, Q, m. r6 t6 [ - if (url.startsWith("https")) {
! h" i0 o- H& k- I( f; a9 |+ s5 B- B - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
$ }5 w8 _3 U( C" Z- k - } else {
" E- L2 ?" u2 w8 o6 E - http.begin(url);6 P* b5 q" D# h% v7 v
- }$ P" j9 D( ?8 P \
- Serial.println("[HTTP] GET...");6 U) T/ v4 W7 t# Q4 M) ?
- int httpCode = http.GET();; r+ a6 t7 j/ D& g2 \5 B3 G
- if (httpCode > 0) {
* W) l3 V7 d5 t% I' W - Serial.printf("[HTTP] code: %d\n", httpCode);7 h0 e9 ~5 t3 d" O* D& H5 x
- if (httpCode == HTTP_CODE_OK) {
; w7 J; S5 ]& Z+ V# `6 R - String payload = http.getString();
( P$ H. x a" g- G8 q# o - Serial.println(payload);& X* M! j- [7 V5 y
- Serial.print("\r\n");
) H$ j! s; @3 L' }3 f - return payload;( Y& i" H: Z' N
- }7 T3 l5 \ [* i- ~, `7 a
- } else {; T. T6 @/ s" F
- Serial.printf("[HTTP] GET... failed, error: %s\n",
: p, h% t7 D; x9 S. J - http.errorToString(httpCode).c_str());% z# Q1 ?+ d9 [9 @/ R
- }
- r2 d+ {% g0 h; O - http.end();
' c; |3 u B# U. e/ p2 r - return "";, N& j+ [2 ~* m, b( M" R
- }: P t/ d0 F5 n, \" L+ S$ p
- }
. W' ?' U. A/ R* p4 V! a7 w& _ - void mainAction() {4 n% |+ i; G7 L1 X
- // 发送请求
8 |& Z5 M9 {& h+ H- L6 Z8 N - doGet("http://google.cn");6 v" K/ ^; x0 U0 A! p; M# } i+ k/ g
- }8 x7 r5 g/ R6 [7 F# r* j
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