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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)4 H4 R3 g& ?" z2 T" P
- #include <ESP8266HTTPClient.h>, R8 `4 y# L) y( M
- #include <ESP8266WiFi.h>4 F8 L' K5 m( S
- #include <ESP8266WiFiMulti.h>3 M4 g2 ^9 T( M) u- ?
- #include <ESP8266WebServer.h>+ Z2 e$ m/ K9 _
- #include <arduino.h>
9 f. n, ^% I' R/ {# K$ G - ESP8266WiFiMulti WiFiMulti;
; m1 |; a/ V4 [ J% s" p - ESP8266WebServer server(80);
9 W' w0 t5 G$ W5 R: ^$ S1 t - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";% G& F/ X4 ?1 Z( d6 t) T4 R
- ADC_MODE(ADC_VCC);
& l# S! g* t* ?8 o/ s - void setup() {
' s; P; U! b+ e) j8 o0 Q3 F7 C7 { - Serial.begin(115200);
% ^8 D/ X8 v/ d9 m( I& S5 E3 ^ - Serial.print("\r\n\n");7 c, T+ C6 Y4 @; p0 Z' G
- pinMode(2,OUTPUT);
$ b1 P, N: v9 ? n - // WIFI5 p( j* L2 I! b/ H( l7 N
- WiFi.mode(WIFI_STA);
9 W3 B# g+ i e - WiFi.hostname("Sparkle");' [+ T; ?0 }, K3 ^
- WiFiMulti.addAP("wifi ssid", "wifi password");
% w+ ^/ E5 B/ R1 T. e5 { - int tryNum = 15;- m6 x, v- _6 Q5 F+ G: Y
- Serial.print("Connect WiFi");0 d0 P/ p" s* H% W7 u* b
- while (WiFiMulti.run() != WL_CONNECTED) {8 o! U7 u! o6 d1 K j/ ^3 t9 k3 w: Z7 h
- digitalWrite(2,0);, y8 }6 d* f& |2 k- E' x- {# H! [
- delay(200);
8 Y, z q8 |$ k& Z. w - digitalWrite(2,1);7 w! P& B L7 f7 g+ t/ w! y
- delay(300);3 [/ ?3 n+ q t( t
- Serial.print(".");
. G8 |3 _# i8 H5 w5 ]! e7 k - tryNum--;
% R) h, D4 n4 s - if (tryNum == 0) {! w/ U! k% Q5 c* \
- // 1min/ O- O5 ~/ [: G# j& X) o
- // ESP.deepSleep(60e6);
; ~- @6 c3 E+ x5 k/ u% O, M, F - ESP.deepSleep(0);
* q* Y, v2 P* ~1 g" r1 \* ^. C - }
! ?( i N* B& y. n6 ?7 x( j - }
4 @7 x$ u3 d! F" f3 j4 W0 n - Serial.print("\r\n");
! l+ |6 j+ } g2 ]# A' q - digitalWrite(2,1);' g6 ?0 \$ E" v+ Z
- Serial.print("IP address : ");
; \$ N. W& X* a g; ^ - Serial.println(WiFi.localIP());
" n0 B8 D" g- M" b - server.on("/", HTTP_GET, [](){
& @5 {7 R2 q3 R - server.sendHeader("Connection", "close");2 Q7 ~4 W* b0 N
- server.send(200, "text/html", serverIndex);1 F/ `) K: X/ q! e- a$ f
- });: S: ?7 ^* w5 N0 O! \& w7 n! b" F5 h
- server.on("/update", HTTP_POST, [](){8 Q+ {6 ~/ A! u. ^8 Q& b3 L
- server.sendHeader("Connection", "close");
/ b1 P) V4 {$ c9 X; f, W - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. _1 o0 `3 h9 ~, T; Y' M - ESP.restart();/ n" L$ c j' P( y0 \9 v
- },[](){
1 i O' s- a8 I& D! D( R! C1 v - HTTPUpload& upload = server.upload();. d: B. h& M9 Q5 K$ L2 a
- if(upload.status == UPLOAD_FILE_START){
3 {4 W$ W1 k, A: ^) r5 s - Serial.setDebugOutput(true);
8 H1 ?# | r6 b) j - Serial.printf("Update: %s\n", upload.filename.c_str());) Y" N2 j% D$ s7 h
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; G/ t- |8 y# w& O5 A& [
- if(!Update.begin(maxSketchSpace)){
( U' c, {7 {7 z8 r* H) l+ O W" ` - Update.printError(Serial);
0 V# @8 a7 p' M# Q. r3 B4 W. ~ - }* ~8 h! l5 q4 X7 ~# g3 B; b0 [
- } else if(upload.status == UPLOAD_FILE_WRITE){
# J! p, P0 Z, U7 j& I, P1 d. F - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
$ [2 j+ J( N: q# E+ Z+ B - Update.printError(Serial);- L3 l, ?; S* W6 m
- }9 J9 O2 t+ S [8 H/ l
- } else if(upload.status == UPLOAD_FILE_END){
! o& |9 r N5 r# B0 r - if(Update.end(true)){
, E) u$ M7 Y" C* A - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ S) W: p+ m# H$ F: g* p' W - } else {5 L x! U! X, w: A1 x
- Update.printError(Serial);, A7 _- O# H* j# G7 P% R4 L! ^
- }
, G5 P* X d4 ^* X - Serial.setDebugOutput(false);8 O5 I. ?- o/ h- y) C" g
- }
% K* J+ \/ x7 l, | n - yield();% b1 H& H: n- B- p o& q
- });& |- i; M$ h) I0 R9 n
- . s) l2 c* p& y: a; _* W
- digitalWrite(2,0);
# `. F7 k# m% U- G2 j7 _ w - mainAction();
$ R$ x* B6 A% s- |0 C - if (digitalRead(0)){' F' W3 x/ d& J; _% u/ ]
- ESP.deepSleep(0);
! Q7 u. v0 s. |7 Y p - } else {" W! X) N8 L8 i5 ^
- server.begin();
9 j" e. t" Y0 `& I( D* R6 | - }
D$ F: }9 T# W) M) C: ~; [- P - }
- S# |. `' \, g& W - void loop() {0 `2 }* r8 D7 N8 i
- server.handleClient();- \$ T l- T3 j, c
- delay(1);1 |4 f/ ~3 m8 d0 r
- }
4 P2 P- q8 P1 p- e - String doGet(String url){6 b. @ q ], u4 v, V$ A! w) [
- if ((WiFiMulti.run() == WL_CONNECTED)) {0 \. }. Z* ?5 U
- HTTPClient http;
+ d d- H( X( u+ M - Serial.println("[HTTP] begin...");2 o, h h: {8 {
- if (url.startsWith("https")) {
5 N' }$ z4 G, q8 z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! `7 Q _3 N" l4 L( t3 r
- } else {
+ ^1 m. a8 J7 z7 Z2 K3 A - http.begin(url);
- j3 y, x6 h5 Z4 v ]! S' Q - }3 @& t I/ i+ x9 J z& B
- Serial.println("[HTTP] GET...");/ m. m% ~* h) e
- int httpCode = http.GET();" M2 w2 q! ^8 {( Q+ M
- if (httpCode > 0) {
2 i; h4 X& q+ N - Serial.printf("[HTTP] code: %d\n", httpCode);# p* a$ s& i+ _6 V p7 H3 q) ^) {
- if (httpCode == HTTP_CODE_OK) {' w, Q4 P9 ~4 @# ]- l! I$ t
- String payload = http.getString();; K$ C2 s) T1 L; J8 `8 P6 S9 g( h
- Serial.println(payload);
: U: R: i- t' N+ { - Serial.print("\r\n");/ s6 s7 `! g5 h* n( [
- return payload;
# L" I! r& F8 c; I/ [2 t - }
! [* ?6 x' M0 ]" T7 S: C% G X - } else {# \6 M# S! U$ r5 } O& d W; t* A
- Serial.printf("[HTTP] GET... failed, error: %s\n",) Y* _1 l0 {0 O, o2 m
- http.errorToString(httpCode).c_str());
- w1 d. j: r3 c* `: Z3 a - }! J% H, ^, u' L# P+ R3 G6 n4 T
- http.end();4 k; r$ b" S) H+ W$ Q8 B! p
- return "";
! ~) u5 S; J" \ - }* K" r4 y% g; i" ^0 c
- }
" H0 R5 i2 F8 p9 w - void mainAction() {% C- B c3 L2 k* R/ V7 ?
- // 发送请求
3 B! g4 |5 A) E& k2 }- ?2 c - doGet("http://google.cn");
+ O2 X) {4 p$ R' Z! y3 ?' L! u; u - }; n8 S( V5 a" r0 V
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