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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)9 W% I9 |* @3 H. n+ p: \
- #include <ESP8266HTTPClient.h>4 O/ b6 n) k \" W1 V6 v$ Z
- #include <ESP8266WiFi.h>
1 T& u8 t& h9 P& e. `, D- N' n - #include <ESP8266WiFiMulti.h>
0 x8 W2 \5 W2 O K. n - #include <ESP8266WebServer.h>6 Q4 w Z. s! f
- #include <arduino.h> Z0 I# X& N4 @, Y, o3 I, T$ @+ P
- ESP8266WiFiMulti WiFiMulti;
( V; Q& z1 g+ U$ V" I - ESP8266WebServer server(80);/ C% ]9 X9 T# {! W+ T
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 Y' ]0 X* g8 o0 j( @ - ADC_MODE(ADC_VCC);
& r: ]5 S/ s2 Z% Q9 d& c7 y) Y - void setup() {
- L4 Z! i5 Y7 { d - Serial.begin(115200);
1 {+ A* n) a3 t% i8 |3 r - Serial.print("\r\n\n");% o2 f- ] I( X5 J4 ~
- pinMode(2,OUTPUT);3 a |0 {/ X% V" G, g4 i, Z7 s& w! X
- // WIFI
4 b a& F" K8 n% | - WiFi.mode(WIFI_STA);/ S4 l$ p- o" l8 Q) {# w5 w
- WiFi.hostname("Sparkle");7 B" \7 w, ~8 g2 z" i
- WiFiMulti.addAP("wifi ssid", "wifi password");
e& f6 _3 M7 m - int tryNum = 15;
. k6 Z4 O' {0 P9 I2 R+ j* J - Serial.print("Connect WiFi");
7 K4 l a! J# x( G - while (WiFiMulti.run() != WL_CONNECTED) {
; x0 ?# c% M4 e- f+ N9 J9 u - digitalWrite(2,0);
/ D2 I& Y: ~+ _& g, h, g. ~& | - delay(200);
' d+ t+ g0 N0 `3 P, w6 p - digitalWrite(2,1);
4 z& X4 c9 C# r% g+ K4 O - delay(300);
& H9 u1 v `2 j. n! }2 S" H3 Y - Serial.print(".");% n# t, G5 k$ z
- tryNum--;
3 ^7 @. \ [$ S) ]# l r, w - if (tryNum == 0) {
$ y" H; a. h2 ?- Z8 \5 E4 H5 v - // 1min
( p1 q( O3 y" I - // ESP.deepSleep(60e6);9 y( E' X1 M9 k& a; M
- ESP.deepSleep(0);# D- Q/ Q6 p; _4 G4 B/ \7 K) m
- }4 j9 P/ O1 k5 p# G" A1 l
- }2 c5 ]* J( f/ W' K- k5 y" r ~8 w
- Serial.print("\r\n");+ K/ }: w2 P' }. {
- digitalWrite(2,1);
. q5 B, Q7 E( \: K* I+ ?! J - Serial.print("IP address : ");
! h. g) S3 E; g, e: d; d, ~ - Serial.println(WiFi.localIP());
1 S0 \) [$ ~& W) t4 R6 Q5 M - server.on("/", HTTP_GET, [](){# y* Y' K. \% @( [' Y2 q
- server.sendHeader("Connection", "close");5 {& K( g0 G$ s* c6 R
- server.send(200, "text/html", serverIndex);
9 E d9 n1 J( N - });
Z6 A, B9 ]/ Y9 a- ^1 @ - server.on("/update", HTTP_POST, [](){, I6 j0 j. l: z" Q- c6 e
- server.sendHeader("Connection", "close");( n1 Q1 W0 F9 W+ c* A- i
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% | |/ L) d, g/ X( d$ B - ESP.restart();
) X9 `# F5 Q' F$ S7 \9 C - },[](){: I. B A& ^# n& @, u" Z3 i1 X
- HTTPUpload& upload = server.upload();
9 Y7 {7 {2 A. U6 a% p- v+ d - if(upload.status == UPLOAD_FILE_START){
' h+ ?) R+ E; w& C J# z9 X) A - Serial.setDebugOutput(true);
t* A9 X$ @4 Q9 x7 Y: w' ~, x - Serial.printf("Update: %s\n", upload.filename.c_str());$ {4 n( `. Q x8 h4 s
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; k3 g' D$ T) U5 q - if(!Update.begin(maxSketchSpace)){
, b7 Q7 p4 Q6 ^% h4 K1 Q - Update.printError(Serial);, z) B! W t) K; Z
- }4 c0 _/ h% U# v& W4 P" |+ m; B
- } else if(upload.status == UPLOAD_FILE_WRITE){
0 H3 p Q& q/ j1 C - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. r$ h5 `' ]0 l y - Update.printError(Serial);
( U$ A9 M1 U+ q6 q* z - }
( C. i( o% v, O, o4 O - } else if(upload.status == UPLOAD_FILE_END){8 N) ]2 ]: x! v2 [' s
- if(Update.end(true)){
* d" _( Z% v, s( u) A1 ^$ Y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* H; ~. u6 \# g, Y: \3 ?* q - } else {- Z% q8 S! e9 `) p) _( K2 n ? o
- Update.printError(Serial);
, I2 n# L3 K, H/ W- [ - }
2 l0 j: m$ K4 z5 N- K: o2 ] - Serial.setDebugOutput(false);
( x! }/ F1 R- B. L# N - }
$ K$ c3 d. S5 b/ v' g - yield();$ x2 K% L$ J2 I$ g& R3 R# n
- });
( m& c0 ^. q! Q& k* H+ y- C - ' U! a7 L& q, v0 I
- digitalWrite(2,0);5 |* N1 {) r- _+ a' h/ H+ f/ q' d) l
- mainAction();' J. t9 I6 h& ~7 k9 }
- if (digitalRead(0)){# `7 y; F; c* `# h
- ESP.deepSleep(0);4 M, L: |- m2 f! U( p
- } else {/ i, L! W3 E* ^- G3 U
- server.begin();
2 v6 a/ B$ ~! _5 U: S( K - }8 i" G ~" Q" n6 D! X
- }
z1 U- M" V3 G2 {4 N2 n1 Y - void loop() {
. x. S7 ^+ s9 [' g - server.handleClient();$ i7 F3 @: Y2 c0 y+ P! k3 g2 y
- delay(1);
4 ~- u' b5 W- V0 l - }
8 j+ W( E( V% t* ]) J7 |# B$ |' C - String doGet(String url){
4 I! ?) L9 i7 x" I; @/ m% e - if ((WiFiMulti.run() == WL_CONNECTED)) {2 b6 n$ X! b" w1 O/ N
- HTTPClient http;) d s5 n# f- i
- Serial.println("[HTTP] begin...");
2 F) G- A7 R* ~! r. m* K+ k - if (url.startsWith("https")) {
5 [5 @: c% y- ` - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
( t& E/ X0 [/ p! T7 r - } else {) p: b+ _& h. H
- http.begin(url);
7 Q. z1 h, o l* n7 k - }
# M# B/ l3 c2 r* Y) S: G7 X- i - Serial.println("[HTTP] GET...");) d5 v8 R5 k }+ w
- int httpCode = http.GET();, P3 a) c, ]3 D% ^
- if (httpCode > 0) {! e" F1 [/ p3 Z; r0 V0 N
- Serial.printf("[HTTP] code: %d\n", httpCode);) [" R& S; [! _
- if (httpCode == HTTP_CODE_OK) {
/ i, L6 y' R4 V8 F - String payload = http.getString(); c5 ]1 d8 ^: W( g7 `3 B2 o
- Serial.println(payload);
( o/ B6 F( M5 m0 | - Serial.print("\r\n");
# E4 S. V: {4 C- F& b p; [$ y n+ | - return payload;, J) L E- l5 n1 Q
- }' }, u9 a# q" h/ n! n# k
- } else {& B8 p, d& f( m5 D
- Serial.printf("[HTTP] GET... failed, error: %s\n",* [8 t) j x! u4 {
- http.errorToString(httpCode).c_str());+ ^8 i' s. @) |
- } q8 U+ q% S% g/ m" ~
- http.end();$ s, d) ]) K4 }+ G0 c( C9 N9 b# s
- return "";2 n" {' p4 W0 G- L
- }1 w! Q3 i% \7 Q& e( [
- }
# H+ s& m) R& ?0 l) T - void mainAction() {* K8 ?8 u# C5 d
- // 发送请求
. r3 { X! D$ \. B0 o - doGet("http://google.cn");9 u p, B! O, n4 E6 f1 g+ P/ f x
- }
; S$ |7 E& \: `# j9 a& F1 G1 E
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