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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)+ k; s3 t* h. k
- #include <ESP8266HTTPClient.h>4 S0 P9 x2 R: d, B* a8 {4 j' S
- #include <ESP8266WiFi.h>
8 G! B; P" c6 z* s% w/ E2 x& W& n - #include <ESP8266WiFiMulti.h> F0 O! n/ @: e% p* z
- #include <ESP8266WebServer.h>
& E' @* u% B) |6 O& ^ - #include <arduino.h>( N8 J, J, o8 n
- ESP8266WiFiMulti WiFiMulti;
% t3 @6 P' [5 I; R; c4 z - ESP8266WebServer server(80);
' F) @; j" V& p; i8 ]. K - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! q: M2 ?/ g' X" _5 P& f+ X4 u - ADC_MODE(ADC_VCC);
% |# E) [6 V2 \8 u - void setup() {
( i: c6 o8 N& I- Z6 I, d r6 ~3 c9 ?1 O - Serial.begin(115200);, l9 w* ^- A- i- i8 \/ I' j' Y
- Serial.print("\r\n\n");3 W% t9 q' c0 I' a- Q
- pinMode(2,OUTPUT);: J4 \, B4 `7 {0 @* {, C; \: a1 B
- // WIFI
; H/ _4 D- g8 D+ l' J$ x - WiFi.mode(WIFI_STA);
' _. I4 u$ P4 N" T q% y4 l+ i- S; b - WiFi.hostname("Sparkle");
/ c/ {: P0 d4 E9 V+ P7 w; Y8 M - WiFiMulti.addAP("wifi ssid", "wifi password");0 T; d4 W7 m* ~) t3 j @4 Z ]
- int tryNum = 15;! ]- E) ?4 K- N/ c& d) h
- Serial.print("Connect WiFi");. N# ~' n2 f+ A; c2 b$ F# P
- while (WiFiMulti.run() != WL_CONNECTED) {
1 n0 @8 H w; D) M- u+ ^ - digitalWrite(2,0);& Q* t1 |8 i; F
- delay(200);7 N3 J p9 c3 U" S
- digitalWrite(2,1);
8 r N) f, u& t* u4 r$ N - delay(300);* _. F; m2 o: [" z% k- y/ M: [
- Serial.print(".");
& g0 K1 i4 o% _/ ^6 W6 u - tryNum--;/ F' P' G) O: ~8 r
- if (tryNum == 0) {( Z# ?( c' R& d$ H3 U
- // 1min$ ?' Z5 z$ R! {3 U* M2 \ C
- // ESP.deepSleep(60e6);
7 u @1 o- b* O3 C* [2 u, e2 { - ESP.deepSleep(0);6 G4 V2 E3 M- ?
- }
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- Serial.print("\r\n");, d, R5 `$ y0 Y5 |) o
- digitalWrite(2,1);7 V3 t$ @+ h* Y* p
- Serial.print("IP address : ");/ r' ?! _5 C1 F
- Serial.println(WiFi.localIP());
% L3 { `: L6 m. p1 l$ Q) X - server.on("/", HTTP_GET, [](){
4 [ y! ~4 H T3 A7 p7 l% b" u8 A, @ - server.sendHeader("Connection", "close");
/ m0 Z" Q m1 d - server.send(200, "text/html", serverIndex);
5 d6 l: v( b F. L) T( \/ {, L - });& t8 V4 V( V. C7 e. }1 ]1 m
- server.on("/update", HTTP_POST, [](){
0 r. q/ l: I4 {! m$ ?. J9 N. }! Z - server.sendHeader("Connection", "close");
' {; H/ d# f$ L& j - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 ]; y7 U5 @4 Y- V$ V6 P
- ESP.restart();
: Z- _, R6 P" X8 j0 h; f - },[](){6 C3 o8 j3 b1 ]9 g+ Z! q/ Q
- HTTPUpload& upload = server.upload();" }2 W# H6 a5 p8 V6 S+ A0 `
- if(upload.status == UPLOAD_FILE_START){
0 `$ @9 Q3 ~0 r; r - Serial.setDebugOutput(true);
% G( K# U/ \) _ - Serial.printf("Update: %s\n", upload.filename.c_str());
4 J3 {4 \+ f( S0 O - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 e3 O3 |- N' l4 d1 r - if(!Update.begin(maxSketchSpace)){
/ e R- W k7 q - Update.printError(Serial);
# K. |; } h1 i# M. k - }
/ n: d& Y- _; W% P! R5 g - } else if(upload.status == UPLOAD_FILE_WRITE){
. {. D7 c9 Q, ^4 y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 Y6 ~: _ N. `
- Update.printError(Serial);
, Z/ E8 @3 B% K& R6 z) [* q6 w1 M - }
& Z5 b- y3 P0 L0 p+ P6 p - } else if(upload.status == UPLOAD_FILE_END){
. B6 l2 _( A: Z; O S4 ^ - if(Update.end(true)){: o. Q" V9 f' X; w0 ?4 k9 H# [
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: N8 g! t5 n3 X& ^2 B; S - } else {
/ Z B6 ]7 p( h: E; N1 \1 V3 T4 K: V - Update.printError(Serial);
8 z- u0 b' W8 `- u' k - }
# P# i7 y9 }" }( q0 l+ x - Serial.setDebugOutput(false);& \$ R4 P- X2 n0 [* P( k
- }
* m" u! W j% T* L/ L, z1 {1 @' ~ - yield();
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- % Q$ k0 e/ M* M, x. j! k$ D
- digitalWrite(2,0);) h5 v, H& [. _$ t! J) {
- mainAction();
# x- B* ~) ^4 g# e - if (digitalRead(0)){
/ V1 G- U8 Y) |% B8 L/ l - ESP.deepSleep(0);) v7 Z q2 T' C2 x T! O
- } else {
3 d5 i* M3 v$ f9 U, s% D5 ? - server.begin();
. y* l- Z" V7 S - } b6 L, \* c; l' ]. u! u6 x
- }
! Z. ?- j$ h( ? - void loop() {0 S- T7 O( Z) ~' v$ T( X0 B; {0 S
- server.handleClient();2 u- I! M T7 E- m: ~! A
- delay(1);2 u0 Y: b. ?$ j! b8 g6 R. \
- }$ m! P# M) I. V7 ]0 \" c
- String doGet(String url){7 L: q7 {- b$ t
- if ((WiFiMulti.run() == WL_CONNECTED)) {' L( g( z0 @5 W, e( m8 o$ p
- HTTPClient http;3 h, t: L+ f1 ^( M5 Q8 t+ Z* g6 V
- Serial.println("[HTTP] begin...");; _( ~# W' ^* Z9 W- l6 l
- if (url.startsWith("https")) {5 N: p) B) ?7 C
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: f, S5 V+ w& i8 q7 H' e& V5 y; @
- } else {
4 F& h5 U7 [( S; H7 i - http.begin(url);
; E0 d: X V2 J - }0 ]" r$ x' [' R D; m
- Serial.println("[HTTP] GET...");! R; a0 `' _0 E& o' |
- int httpCode = http.GET();- D' m$ z0 _- y
- if (httpCode > 0) {
' o. \: p! }& q - Serial.printf("[HTTP] code: %d\n", httpCode);
1 b0 G6 A( r5 h7 S2 o - if (httpCode == HTTP_CODE_OK) { K0 r6 y; N- w
- String payload = http.getString();
) f) V/ J# ^ E; {$ H& G4 Z c - Serial.println(payload);: _6 b- u; U# ? Z9 H6 S {
- Serial.print("\r\n");8 I' l; ^$ `; {4 {8 j
- return payload;
4 y2 Q1 D' i& g) H8 Z - }) J/ \# V% d' _- r! B
- } else {- ]/ E& ^9 f7 ~% _; Y
- Serial.printf("[HTTP] GET... failed, error: %s\n",+ G5 G+ `& u2 t4 z4 J
- http.errorToString(httpCode).c_str());
* _* B( g# q( B6 a! C9 [( n - }
4 J- g6 U* s2 U+ x/ [ - http.end();/ d9 U. Z, A; V0 } z G
- return "";
# {" t' s" c! n' K! [* O& T0 p6 U - }4 ^7 F( { x$ J' A3 D0 v4 [
- }
. o( y3 I( M0 R+ B; p - void mainAction() {. V. k4 Z9 x8 M' \
- // 发送请求7 P9 _7 }: ^0 m! Q2 y4 C" a
- doGet("http://google.cn");
9 D, j b' O4 d- x - }
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