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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)3 Y+ Q1 @. k. h$ n6 A7 G
- #include <ESP8266HTTPClient.h>
( H2 |+ A3 ?8 r- G" O4 k8 I - #include <ESP8266WiFi.h>
+ n: F5 G2 J3 J: L+ I - #include <ESP8266WiFiMulti.h>
; Q7 y. {' i3 _* [7 {% M8 |7 \ - #include <ESP8266WebServer.h>' h, X9 R% I! e" K0 c; v
- #include <arduino.h>2 c H9 s$ l) W. s
- ESP8266WiFiMulti WiFiMulti;) y( T, @$ p/ `$ A* |* \* `6 K
- ESP8266WebServer server(80);. s. U. m% [/ p V( v ^$ k
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ c6 }2 X& w7 i! d" Y$ b
- ADC_MODE(ADC_VCC);% Q) x) w/ ~& `/ d$ u9 h% f [
- void setup() {
2 v1 g& v% h" B0 c - Serial.begin(115200);8 g4 _7 \2 F5 @( k1 c
- Serial.print("\r\n\n");2 C2 F+ U+ E- d/ ~1 y
- pinMode(2,OUTPUT);
! N Z( E5 q1 y+ w - // WIFI4 L0 r; p# ^6 v r1 u+ \- P+ ]
- WiFi.mode(WIFI_STA);4 o: k: z. p6 _1 }4 c. Q
- WiFi.hostname("Sparkle");6 k$ q) J3 K `, f4 }2 V! c, k1 C
- WiFiMulti.addAP("wifi ssid", "wifi password");
+ K+ q* K0 A( n3 p1 o - int tryNum = 15;
& k- @; b7 z2 l/ L* z: Y - Serial.print("Connect WiFi");
5 x. m1 z( `1 S - while (WiFiMulti.run() != WL_CONNECTED) {' p) e) q' D; S; v# t
- digitalWrite(2,0);
: P5 l+ } Y) ~% M - delay(200);
3 G3 g0 E4 x: y8 K - digitalWrite(2,1);! n0 W3 Z D2 K" }2 m- D' K6 v7 M
- delay(300);
( S0 p. K2 k/ r/ q" D1 p3 z% Z - Serial.print(".");2 j& r" j [$ B9 e
- tryNum--;
' V0 z* ?# W6 Z4 E$ ^2 I - if (tryNum == 0) {
& @3 d; z$ `! Q# M - // 1min- \0 k) e. a# T/ [! k2 {$ V
- // ESP.deepSleep(60e6);
6 f, \. l7 m. |1 P3 P* A$ } - ESP.deepSleep(0);
4 Q. F- K7 Y/ B& P - }
: s- |8 r$ e; O: O, e0 h - }2 `8 ~8 N+ o* ?/ k: O
- Serial.print("\r\n");
$ p2 o8 ]0 N5 Z" n1 `7 g - digitalWrite(2,1);
0 i5 u/ |8 W/ R2 y+ e$ K - Serial.print("IP address : ");! L6 J: X) z" h/ m- |3 q
- Serial.println(WiFi.localIP());
! t6 f2 C7 t0 N5 [; v - server.on("/", HTTP_GET, [](){. m+ B1 W6 t& n
- server.sendHeader("Connection", "close");
% U0 W% i, I* v9 }: z - server.send(200, "text/html", serverIndex);2 ^" f) B9 m4 \% Q
- });7 `) [5 L8 V; b; _7 L
- server.on("/update", HTTP_POST, [](){# F6 a9 _2 Q" V, R; r6 o
- server.sendHeader("Connection", "close");* |( y" k9 c8 \* T( N8 v
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
! H" K- T$ ^) @2 G, s - ESP.restart();
! \) H. _0 G7 T8 z# m - },[](){1 T& E) M2 i/ L+ G; t6 e
- HTTPUpload& upload = server.upload();, X+ S3 n! i8 L; _& e# w/ {5 p
- if(upload.status == UPLOAD_FILE_START){
+ c7 g5 C) R, A) [: V$ P - Serial.setDebugOutput(true);
" G( m) `' ]$ y& B ^ - Serial.printf("Update: %s\n", upload.filename.c_str());/ l4 O2 M m( U: t" b# b. A9 O
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. k; H& g9 b/ c. F- K' W8 n# N - if(!Update.begin(maxSketchSpace)){# D1 h1 c6 D; W3 I- D, N
- Update.printError(Serial);
4 w" a3 o3 X+ t$ v: ^( |6 k - }, e3 I5 x! O/ Q; {4 O
- } else if(upload.status == UPLOAD_FILE_WRITE){1 h& c; [ k y# z9 t3 z1 e2 C
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ m6 {+ l; _$ f* Z2 T4 j
- Update.printError(Serial);$ x, n- ?# l1 u, |! @! B
- }
/ G$ m( a7 b, u3 B' X, | - } else if(upload.status == UPLOAD_FILE_END){ p# l6 Z' X, F+ d
- if(Update.end(true)){# n* v/ z4 e! ?& h0 B
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
( Q+ Q7 T. H9 c0 {# k: H! l3 F - } else {
8 t" y+ r- P" ^. V: d( ^ - Update.printError(Serial);5 f# H' h0 _4 x$ W$ @ B5 S
- }# g; [' P( N. z' _. R2 p( \: t
- Serial.setDebugOutput(false);
0 I# s$ p0 X' Y( o7 [) ]. H0 | - }$ }% R7 G+ b2 F' {
- yield();
) s/ Y5 Q [$ @4 x - });
. F5 L5 }0 B' s3 n a -
2 w. r- D5 \4 s- M, o - digitalWrite(2,0);
- X2 ?7 O1 g; j; B1 r0 Y3 F1 D' B - mainAction(); l0 g" d8 v' t( X. ?: ]
- if (digitalRead(0)){6 J. d- {* ]' L" B
- ESP.deepSleep(0);
4 \0 e `' {2 t8 |5 u* u - } else {
2 G: m' P/ X4 k& Z - server.begin();" h' } @8 ]" Y8 c( L# I
- }; I+ f, a. }% e7 k6 ^4 p
- }
6 s4 G! D" y2 c( ^8 h - void loop() {/ E, b/ v8 E0 u* d: e
- server.handleClient();* X2 A0 @1 V }, e. P! I2 {/ Q: W5 R
- delay(1);
3 h" z/ N$ y5 i7 a! f# h& W - }
' ~3 y x+ [* w3 d - String doGet(String url){7 d4 f: y U0 P7 r a B
- if ((WiFiMulti.run() == WL_CONNECTED)) {9 g+ R5 s, o& r* V/ Z2 o/ o8 K! n
- HTTPClient http;
& o$ l; |: B: B6 L3 `) i - Serial.println("[HTTP] begin...");
# @1 V# u0 ?/ X2 n5 B! a. U - if (url.startsWith("https")) {# x# [( A7 [5 W: U
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 U! i# o" i- a& ?" [
- } else {. x* A% `+ [5 D, g- f
- http.begin(url);
/ ?/ `5 \, t- t7 a' m( X/ m - }# k" K6 W- [* E7 c& K; n
- Serial.println("[HTTP] GET...");
0 k1 ]9 ^3 i t, W5 f( _& D$ B - int httpCode = http.GET();
; }6 ?! z3 |2 P) c! |7 b! S( ^2 b - if (httpCode > 0) {. w2 L6 J1 p6 s* Y) P* A% X
- Serial.printf("[HTTP] code: %d\n", httpCode);6 w k& Y, n V" l+ ?5 k' h
- if (httpCode == HTTP_CODE_OK) {
* v. _( y& J C/ x - String payload = http.getString();
+ V$ }' w7 J6 E8 f @ - Serial.println(payload);
1 T! x* Z2 ]/ I; p7 G, W3 Q1 Q - Serial.print("\r\n");4 t1 E9 S: B' \9 t. _. A
- return payload;
4 e- u# E4 A$ r6 m5 {9 k/ Z- c2 r9 \ - }0 N: x9 m/ ~4 @9 `1 {
- } else {
2 }, l) o2 b! p4 m8 n3 f6 Y - Serial.printf("[HTTP] GET... failed, error: %s\n",
$ `/ ~$ F( Q0 l6 x1 S! C1 C - http.errorToString(httpCode).c_str());
6 \8 b; J$ V/ v: N - }
- n4 N8 y( J$ o' b# n - http.end();0 |) J& W/ A3 U' E$ T# w' o" c
- return "";
5 p9 @; D6 Y; ^* X; d6 m7 K: r - }
2 c$ B0 K: x! j$ G# G - }
! M6 b$ ]3 u0 f - void mainAction() {+ H) S6 o9 l- b( |
- // 发送请求
) o" V+ c9 \5 { - doGet("http://google.cn");0 f- B+ L; j/ |+ s& t
- }
# v) h) a& \( B' E) }) b
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