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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 v( X; }9 E6 p9 B! N0 `- #include <ESP8266HTTPClient.h>/ o- t, F$ E( F% J1 H
- #include <ESP8266WiFi.h>
7 | ^5 n( w' E9 g2 m - #include <ESP8266WiFiMulti.h>% I2 J$ X1 S# Q( V
- #include <ESP8266WebServer.h>5 S9 B0 x# K) J/ O/ E
- #include <arduino.h># s* @ U* S3 I; j; K4 g# u
- ESP8266WiFiMulti WiFiMulti;
1 m T- ~& h ]! {6 X - ESP8266WebServer server(80);
) o, C6 J# I8 J - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
- u. x1 z4 I: l: q - ADC_MODE(ADC_VCC);! j: k, R& i2 k# }
- void setup() {5 m7 b$ w) A1 b
- Serial.begin(115200);- f3 e" \7 y9 L' P$ {# D# \3 z
- Serial.print("\r\n\n");
: _8 z/ e7 Q; s/ f - pinMode(2,OUTPUT);
, m8 n4 P% Y. g) w( ?; G& K - // WIFI# N( {" E# X C/ o. ^1 j, n5 v$ F
- WiFi.mode(WIFI_STA); W6 l7 s5 i1 b \) s/ r
- WiFi.hostname("Sparkle");
+ Y5 |! R7 D W, r4 c9 ] - WiFiMulti.addAP("wifi ssid", "wifi password");
+ O6 |6 _, j5 S - int tryNum = 15;+ l; \2 z; `6 b% U6 k8 }1 l
- Serial.print("Connect WiFi");1 a7 V' E& X7 K; Y
- while (WiFiMulti.run() != WL_CONNECTED) {& N( H' Z4 x$ X/ }0 h) l! n
- digitalWrite(2,0);$ p; E% D4 y& f" i
- delay(200);1 h d% Q8 b" y7 m% \* S$ B# H5 \9 {
- digitalWrite(2,1);
' V+ ~6 ? q1 z8 h) E - delay(300);
% Y7 L9 S: L$ y. s, f; R - Serial.print(".");
7 [' x3 d! w) s6 S - tryNum--;! N; [7 k) q. u4 f' i
- if (tryNum == 0) {
# V: v( x) t& c6 G3 H( Y2 ^ - // 1min3 d: D1 Q6 A; w
- // ESP.deepSleep(60e6);
2 M. c- E3 `0 o- S+ L3 }" b$ S! j - ESP.deepSleep(0);
/ Q. K8 M" R1 w \2 z# s+ y - }' f+ y( l3 |9 ]/ d/ i) L4 m Y
- }+ J- ^5 z* [: B7 q" q
- Serial.print("\r\n");
9 E2 k$ l1 n8 o/ V/ [2 K$ e - digitalWrite(2,1);
0 |* M+ R4 Z; Y' y - Serial.print("IP address : ");
f) X4 i0 z' Z9 g - Serial.println(WiFi.localIP());1 r8 R( _, z+ Z$ t3 F, X' r* k* P
- server.on("/", HTTP_GET, [](){, H* o/ ?1 A- z$ Z# I! L' S
- server.sendHeader("Connection", "close");7 B+ m1 o" M, u/ ?; A
- server.send(200, "text/html", serverIndex);- i @5 ]& H% n V( W; `# f1 F+ K
- });) a# A; e6 [1 g4 j0 l
- server.on("/update", HTTP_POST, [](){" C2 G) q( w5 E0 N. B
- server.sendHeader("Connection", "close");
* R& W6 |+ [/ i" S% x$ z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
! W$ f9 U `2 v5 `- n1 }( | - ESP.restart();
) l& U9 x2 e/ W! a! _ - },[](){
% E3 ^# `0 ]3 H - HTTPUpload& upload = server.upload();* j2 @5 n, H1 T9 A; l
- if(upload.status == UPLOAD_FILE_START){+ f/ r1 `4 D9 T R& M: u# U' M
- Serial.setDebugOutput(true);# }- L* K! m2 j+ w' Z) i' W
- Serial.printf("Update: %s\n", upload.filename.c_str());
1 d# K; N- F* L4 g - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 n- B5 X% x5 y& [ Y6 Q n - if(!Update.begin(maxSketchSpace)){
: y0 J; h9 s$ S E1 |1 z - Update.printError(Serial);" N; J8 a" F4 B4 i8 v6 ~" _4 k
- }
# e" Q Y: e5 o$ J7 g* m8 H - } else if(upload.status == UPLOAD_FILE_WRITE){7 l2 k; N2 e6 m! j+ ~0 t; G, B( T
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 T: A, V# z3 Q0 `; X - Update.printError(Serial);
7 m8 t: ]. d8 b - }
+ q& e; h4 b, b" j - } else if(upload.status == UPLOAD_FILE_END){
, G. }2 t- K& \9 c7 g( c! N& l$ T: a - if(Update.end(true)){
7 b5 W; P6 q( l" H6 g- w5 [7 ] - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" g- \) `- L0 s. E- _6 C - } else {
; p* E0 n8 r9 q! M7 l; `, C* e - Update.printError(Serial);
6 l& z& E+ h- e# i& j2 h6 m - }! `. @+ _$ V, L4 A
- Serial.setDebugOutput(false);3 z9 Q: R0 s/ \6 ?
- }! e/ \. e4 [; ?7 X8 r
- yield();7 t H6 j" n4 J8 ^1 q+ ]. h$ l
- });+ o6 i6 h9 s, _* s @) m1 g
- 1 e8 c4 {4 d8 d4 }
- digitalWrite(2,0);
& ~. n) Z, K: O! g! H4 t2 u6 U6 q - mainAction();
& ? V h! f# S9 X1 A - if (digitalRead(0)){
% v' {9 p9 o" U) \# j4 W9 ? - ESP.deepSleep(0);
( X2 x. L5 \6 G( K( c - } else {
8 C/ m! z1 F- c& i5 i& l. ^ - server.begin();
. N, G6 B, E4 B% t - }
5 k0 ]+ p2 {( ]8 F3 { - }. y1 h/ Y4 U0 c
- void loop() {1 G+ `, O* I2 [
- server.handleClient();
% }( {+ u2 G% A1 w3 l8 S3 z* l - delay(1);) q6 i8 W. j7 v; N
- }
/ g4 v1 c" l; g/ W* p: _' f - String doGet(String url){
' k6 O5 u( |. Q. p - if ((WiFiMulti.run() == WL_CONNECTED)) {
" q: O1 k6 U( g" d5 {+ b, ] - HTTPClient http;( D+ I$ z* |2 L
- Serial.println("[HTTP] begin...");/ _, x+ z) H6 c) p5 S- b6 Q% m" V( Z
- if (url.startsWith("https")) {
: u2 {" y) i# j1 _' ~ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# v6 O: {' Q% I! J, E, H, p- n - } else {
0 l! m9 u& N2 F: O4 T - http.begin(url);
$ a) r; ?0 p9 K3 N' x1 W9 f- l - }
$ p# U. [: d$ j( H* s/ } - Serial.println("[HTTP] GET...");
1 V! y0 c m& L! Z - int httpCode = http.GET();8 q' N7 o' ]+ O) P
- if (httpCode > 0) {* Z! T2 M+ R7 d/ k
- Serial.printf("[HTTP] code: %d\n", httpCode);" k9 N4 m4 {7 u7 o
- if (httpCode == HTTP_CODE_OK) {+ J0 E L) v6 d- P1 ~3 S4 d1 k
- String payload = http.getString();2 B. \4 C7 ^+ I- u
- Serial.println(payload);
7 g* S; S F1 U6 v, X% _ - Serial.print("\r\n");
, l% q$ y3 z8 J4 o2 [3 _ - return payload;
6 F. y: Y/ D8 [8 e - }
& @0 r3 S' R! G$ o) z* P/ R# B - } else {
- J! {, Q9 A+ p' z, z - Serial.printf("[HTTP] GET... failed, error: %s\n",
4 f6 x5 Q, B- m2 r# e1 T - http.errorToString(httpCode).c_str());
# b2 w( c2 [, z& D; p+ I9 u - }
4 \1 G% K3 u3 Z2 K; N- c9 Z- i - http.end();" F( ^' x; g7 x9 A" p- H7 R+ N& ~
- return "";3 D1 i& S5 H8 ~. O R8 g1 c) a
- }
0 P# A+ \5 N; A1 M: t, A: ?* { - }! G$ E! k+ F, ^2 T- e- P
- void mainAction() {
3 ?1 |+ V7 m2 x0 y6 c% {8 T - // 发送请求
P* r0 b F! {6 W! U2 C/ B - doGet("http://google.cn");
y0 U8 E ~6 N' J" |" O! s - }
6 f9 }, A8 Y! |+ h( f- V
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